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Finding the Fourth Proportional to 71,356.80, 98,475.51 and 39,525.70

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Solution

The fourth proportional to 71,356.80, 98,475.51 and 39,525.70 is: 54,547.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,356.80 : 98,475.51 = 39,525.70 : x
  2. Step 2: Convert to fraction form
    71,356.80/98,475.51 = 39,525.70/x
  3. Step 3: Cross multiply
    71,356.80x = 98,475.51 × 39,525.70
  4. Step 4: Simplify right side
    71,356.80x = 3,892,313,465.61
  5. Step 5: Solve for x
    x = 3,892,313,465.61/71,356.80
  6. Step 6: Final answer
    x = 54,547.20

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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.