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Finding the Fourth Proportional to 71,361.86, 98,482.14 and 39,530.12

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Solution

The fourth proportional to 71,361.86, 98,482.14 and 39,530.12 is: 54,553.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,361.86 : 98,482.14 = 39,530.12 : x
  2. Step 2: Convert to fraction form
    71,361.86/98,482.14 = 39,530.12/x
  3. Step 3: Cross multiply
    71,361.86x = 98,482.14 × 39,530.12
  4. Step 4: Simplify right side
    71,361.86x = 3,893,010,812.06
  5. Step 5: Solve for x
    x = 3,893,010,812.06/71,361.86
  6. Step 6: Final answer
    x = 54,553.10

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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.