Home / 87,105.87-130,526.32-39,693.33

Finding the Fourth Proportional to 87,105.87, 130,526.32 and 39,693.33

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Solution

The fourth proportional to 87,105.87, 130,526.32 and 39,693.33 is: 59,479.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,105.87 : 130,526.32 = 39,693.33 : x
  2. Step 2: Convert to fraction form
    87,105.87/130,526.32 = 39,693.33/x
  3. Step 3: Cross multiply
    87,105.87x = 130,526.32 × 39,693.33
  4. Step 4: Simplify right side
    87,105.87x = 5,181,024,392.68
  5. Step 5: Solve for x
    x = 5,181,024,392.68/87,105.87
  6. Step 6: Final answer
    x = 59,479.62

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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.