Home / 55,755.28-77,006.16-36,720.12

Finding the Fourth Proportional to 55,755.28, 77,006.16 and 36,720.12

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Solution

The fourth proportional to 55,755.28, 77,006.16 and 36,720.12 is: 50,715.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,755.28 : 77,006.16 = 36,720.12 : x
  2. Step 2: Convert to fraction form
    55,755.28/77,006.16 = 36,720.12/x
  3. Step 3: Cross multiply
    55,755.28x = 77,006.16 × 36,720.12
  4. Step 4: Simplify right side
    55,755.28x = 2,827,675,435.94
  5. Step 5: Solve for x
    x = 2,827,675,435.94/55,755.28
  6. Step 6: Final answer
    x = 50,715.83

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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.