Home / 70,979.28-97,951.68-39,147.72

Finding the Fourth Proportional to 70,979.28, 97,951.68 and 39,147.72

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Solution

The fourth proportional to 70,979.28, 97,951.68 and 39,147.72 is: 54,024.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,979.28 : 97,951.68 = 39,147.72 : x
  2. Step 2: Convert to fraction form
    70,979.28/97,951.68 = 39,147.72/x
  3. Step 3: Cross multiply
    70,979.28x = 97,951.68 × 39,147.72
  4. Step 4: Simplify right side
    70,979.28x = 3,834,584,942.17
  5. Step 5: Solve for x
    x = 3,834,584,942.17/70,979.28
  6. Step 6: Final answer
    x = 54,024.00

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1.5x scale

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.