Home / 69,587.91-96,031.31-39,372.55

Finding the Fourth Proportional to 69,587.91, 96,031.31 and 39,372.55

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Solution

The fourth proportional to 69,587.91, 96,031.31 and 39,372.55 is: 54,334.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,587.91 : 96,031.31 = 39,372.55 : x
  2. Step 2: Convert to fraction form
    69,587.91/96,031.31 = 39,372.55/x
  3. Step 3: Cross multiply
    69,587.91x = 96,031.31 × 39,372.55
  4. Step 4: Simplify right side
    69,587.91x = 3,780,997,117.60
  5. Step 5: Solve for x
    x = 3,780,997,117.60/69,587.91
  6. Step 6: Final answer
    x = 54,334.11

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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.