Home / 87,206.52-120,288.80-59,970.17

Finding the Fourth Proportional to 87,206.52, 120,288.80 and 59,970.17

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Solution

The fourth proportional to 87,206.52, 120,288.80 and 59,970.17 is: 82,720.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,206.52 : 120,288.80 = 59,970.17 : x
  2. Step 2: Convert to fraction form
    87,206.52/120,288.80 = 59,970.17/x
  3. Step 3: Cross multiply
    87,206.52x = 120,288.80 × 59,970.17
  4. Step 4: Simplify right side
    87,206.52x = 7,213,739,898.41
  5. Step 5: Solve for x
    x = 7,213,739,898.41/87,206.52
  6. Step 6: Final answer
    x = 82,720.19

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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.