Home / 79,989.68-119,724.13-58,921.43

Finding the Fourth Proportional to 79,989.68, 119,724.13 and 58,921.43

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Solution

The fourth proportional to 79,989.68, 119,724.13 and 58,921.43 is: 88,190.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,989.68 : 119,724.13 = 58,921.43 : x
  2. Step 2: Convert to fraction form
    79,989.68/119,724.13 = 58,921.43/x
  3. Step 3: Cross multiply
    79,989.68x = 119,724.13 × 58,921.43
  4. Step 4: Simplify right side
    79,989.68x = 7,054,316,088.70
  5. Step 5: Solve for x
    x = 7,054,316,088.70/79,989.68
  6. Step 6: Final answer
    x = 88,190.33

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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.