Home / 71,038.64-98,033.12-39,207.31

Finding the Fourth Proportional to 71,038.64, 98,033.12 and 39,207.31

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Solution

The fourth proportional to 71,038.64, 98,033.12 and 39,207.31 is: 54,105.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,038.64 : 98,033.12 = 39,207.31 : x
  2. Step 2: Convert to fraction form
    71,038.64/98,033.12 = 39,207.31/x
  3. Step 3: Cross multiply
    71,038.64x = 98,033.12 × 39,207.31
  4. Step 4: Simplify right side
    71,038.64x = 3,843,615,318.22
  5. Step 5: Solve for x
    x = 3,843,615,318.22/71,038.64
  6. Step 6: Final answer
    x = 54,105.98

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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.