Home / 87,296.77-130,686.81-53,909.50

Finding the Fourth Proportional to 87,296.77, 130,686.81 and 53,909.50

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Solution

The fourth proportional to 87,296.77, 130,686.81 and 53,909.50 is: 80,704.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,296.77 : 130,686.81 = 53,909.50 : x
  2. Step 2: Convert to fraction form
    87,296.77/130,686.81 = 53,909.50/x
  3. Step 3: Cross multiply
    87,296.77x = 130,686.81 × 53,909.50
  4. Step 4: Simplify right side
    87,296.77x = 7,045,260,583.70
  5. Step 5: Solve for x
    x = 7,045,260,583.70/87,296.77
  6. Step 6: Final answer
    x = 80,704.71

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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.