Home / 55,090.37-76,023.13-31,224.76

Finding the Fourth Proportional to 55,090.37, 76,023.13 and 31,224.76

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Solution

The fourth proportional to 55,090.37, 76,023.13 and 31,224.76 is: 43,089.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,090.37 : 76,023.13 = 31,224.76 : x
  2. Step 2: Convert to fraction form
    55,090.37/76,023.13 = 31,224.76/x
  3. Step 3: Cross multiply
    55,090.37x = 76,023.13 × 31,224.76
  4. Step 4: Simplify right side
    55,090.37x = 2,373,803,988.70
  5. Step 5: Solve for x
    x = 2,373,803,988.70/55,090.37
  6. Step 6: Final answer
    x = 43,089.27

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.