Home / 71,063.12-98,066.16-39,231.32

Finding the Fourth Proportional to 71,063.12, 98,066.16 and 39,231.32

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Solution

The fourth proportional to 71,063.12, 98,066.16 and 39,231.32 is: 54,138.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,063.12 : 98,066.16 = 39,231.32 : x
  2. Step 2: Convert to fraction form
    71,063.12/98,066.16 = 39,231.32/x
  3. Step 3: Cross multiply
    71,063.12x = 98,066.16 × 39,231.32
  4. Step 4: Simplify right side
    71,063.12x = 3,847,264,904.13
  5. Step 5: Solve for x
    x = 3,847,264,904.13/71,063.12
  6. Step 6: Final answer
    x = 54,138.70

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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.