Home / 55,205.81-76,186.34-31,334.70

Finding the Fourth Proportional to 55,205.81, 76,186.34 and 31,334.70

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Solution

The fourth proportional to 55,205.81, 76,186.34 and 31,334.70 is: 43,243.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,205.81 : 76,186.34 = 31,334.70 : x
  2. Step 2: Convert to fraction form
    55,205.81/76,186.34 = 31,334.70/x
  3. Step 3: Cross multiply
    55,205.81x = 76,186.34 × 31,334.70
  4. Step 4: Simplify right side
    55,205.81x = 2,387,276,108.00
  5. Step 5: Solve for x
    x = 2,387,276,108.00/55,205.81
  6. Step 6: Final answer
    x = 43,243.20

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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.