Home / 71,434.85-98,560.13-56,280.56

Finding the Fourth Proportional to 71,434.85, 98,560.13 and 56,280.56

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Solution

The fourth proportional to 71,434.85, 98,560.13 and 56,280.56 is: 77,651.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,434.85 : 98,560.13 = 56,280.56 : x
  2. Step 2: Convert to fraction form
    71,434.85/98,560.13 = 56,280.56/x
  3. Step 3: Cross multiply
    71,434.85x = 98,560.13 × 56,280.56
  4. Step 4: Simplify right side
    71,434.85x = 5,547,018,535.87
  5. Step 5: Solve for x
    x = 5,547,018,535.87/71,434.85
  6. Step 6: Final answer
    x = 77,651.44

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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.