Home / 87,320.43-130,887.39-49,799.71

Finding the Fourth Proportional to 87,320.43, 130,887.39 and 49,799.71

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Solution

The fourth proportional to 87,320.43, 130,887.39 and 49,799.71 is: 74,646.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,320.43 : 130,887.39 = 49,799.71 : x
  2. Step 2: Convert to fraction form
    87,320.43/130,887.39 = 49,799.71/x
  3. Step 3: Cross multiply
    87,320.43x = 130,887.39 × 49,799.71
  4. Step 4: Simplify right side
    87,320.43x = 6,518,154,415.02
  5. Step 5: Solve for x
    x = 6,518,154,415.02/87,320.43
  6. Step 6: Final answer
    x = 74,646.38

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1.5x scale

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.