Home / 42,456.76-63,759.08-39,118.80

Finding the Fourth Proportional to 42,456.76, 63,759.08 and 39,118.80

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Solution

The fourth proportional to 42,456.76, 63,759.08 and 39,118.80 is: 58,746.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,456.76 : 63,759.08 = 39,118.80 : x
  2. Step 2: Convert to fraction form
    42,456.76/63,759.08 = 39,118.80/x
  3. Step 3: Cross multiply
    42,456.76x = 63,759.08 × 39,118.80
  4. Step 4: Simplify right side
    42,456.76x = 2,494,178,698.70
  5. Step 5: Solve for x
    x = 2,494,178,698.70/42,456.76
  6. Step 6: Final answer
    x = 58,746.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.