Home / 70,861.28-97,789.36-39,029.52

Finding the Fourth Proportional to 70,861.28, 97,789.36 and 39,029.52

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Solution

The fourth proportional to 70,861.28, 97,789.36 and 39,029.52 is: 53,861.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,861.28 : 97,789.36 = 39,029.52 : x
  2. Step 2: Convert to fraction form
    70,861.28/97,789.36 = 39,029.52/x
  3. Step 3: Cross multiply
    70,861.28x = 97,789.36 × 39,029.52
  4. Step 4: Simplify right side
    70,861.28x = 3,816,671,781.91
  5. Step 5: Solve for x
    x = 3,816,671,781.91/70,861.28
  6. Step 6: Final answer
    x = 53,861.17

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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.