Home / 87,788.73-121,148.05-47,503.20

Finding the Fourth Proportional to 87,788.73, 121,148.05 and 47,503.20

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Solution

The fourth proportional to 87,788.73, 121,148.05 and 47,503.20 is: 65,554.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,788.73 : 121,148.05 = 47,503.20 : x
  2. Step 2: Convert to fraction form
    87,788.73/121,148.05 = 47,503.20/x
  3. Step 3: Cross multiply
    87,788.73x = 121,148.05 × 47,503.20
  4. Step 4: Simplify right side
    87,788.73x = 5,754,920,048.76
  5. Step 5: Solve for x
    x = 5,754,920,048.76/87,788.73
  6. Step 6: Final answer
    x = 65,554.20

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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.