Home / 71,327.10-98,431.32-39,498

Finding the Fourth Proportional to 71,327.10, 98,431.32 and 39,498

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Solution

The fourth proportional to 71,327.10, 98,431.32 and 39,498 is: 54,507.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,327.10 : 98,431.32 = 39,498 : x
  2. Step 2: Convert to fraction form
    71,327.10/98,431.32 = 39,498/x
  3. Step 3: Cross multiply
    71,327.10x = 98,431.32 × 39,498
  4. Step 4: Simplify right side
    71,327.10x = 3,887,840,277.36
  5. Step 5: Solve for x
    x = 3,887,840,277.36/71,327.10
  6. Step 6: Final answer
    x = 54,507.20

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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.