Home / 68,031.52-93,856.56-39,345.92

Finding the Fourth Proportional to 68,031.52, 93,856.56 and 39,345.92

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Solution

The fourth proportional to 68,031.52, 93,856.56 and 39,345.92 is: 54,281.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,031.52 : 93,856.56 = 39,345.92 : x
  2. Step 2: Convert to fraction form
    68,031.52/93,856.56 = 39,345.92/x
  3. Step 3: Cross multiply
    68,031.52x = 93,856.56 × 39,345.92
  4. Step 4: Simplify right side
    68,031.52x = 3,692,872,701.24
  5. Step 5: Solve for x
    x = 3,692,872,701.24/68,031.52
  6. Step 6: Final answer
    x = 54,281.79

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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.