Home / 78,065.29-107,732.08-47,867.25

Finding the Fourth Proportional to 78,065.29, 107,732.08 and 47,867.25

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Solution

The fourth proportional to 78,065.29, 107,732.08 and 47,867.25 is: 66,058.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,065.29 : 107,732.08 = 47,867.25 : x
  2. Step 2: Convert to fraction form
    78,065.29/107,732.08 = 47,867.25/x
  3. Step 3: Cross multiply
    78,065.29x = 107,732.08 × 47,867.25
  4. Step 4: Simplify right side
    78,065.29x = 5,156,838,600.96
  5. Step 5: Solve for x
    x = 5,156,838,600.96/78,065.29
  6. Step 6: Final answer
    x = 66,058.02

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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.