Home / 87,320.90-130,830.15-40,477.70

Finding the Fourth Proportional to 87,320.90, 130,830.15 and 40,477.70

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Solution

The fourth proportional to 87,320.90, 130,830.15 and 40,477.70 is: 60,646.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,320.90 : 130,830.15 = 40,477.70 : x
  2. Step 2: Convert to fraction form
    87,320.90/130,830.15 = 40,477.70/x
  3. Step 3: Cross multiply
    87,320.90x = 130,830.15 × 40,477.70
  4. Step 4: Simplify right side
    87,320.90x = 5,295,703,562.66
  5. Step 5: Solve for x
    x = 5,295,703,562.66/87,320.90
  6. Step 6: Final answer
    x = 60,646.46

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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.