Home / 55,640.34-76,783.91-30,146.76

Finding the Fourth Proportional to 55,640.34, 76,783.91 and 30,146.76

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Solution

The fourth proportional to 55,640.34, 76,783.91 and 30,146.76 is: 41,602.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,640.34 : 76,783.91 = 30,146.76 : x
  2. Step 2: Convert to fraction form
    55,640.34/76,783.91 = 30,146.76/x
  3. Step 3: Cross multiply
    55,640.34x = 76,783.91 × 30,146.76
  4. Step 4: Simplify right side
    55,640.34x = 2,314,785,955.90
  5. Step 5: Solve for x
    x = 2,314,785,955.90/55,640.34
  6. Step 6: Final answer
    x = 41,602.66

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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.