Home / 58,581.13-87,885.60-19,138.18

Finding the Fourth Proportional to 58,581.13, 87,885.60 and 19,138.18

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Solution

The fourth proportional to 58,581.13, 87,885.60 and 19,138.18 is: 28,711.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,581.13 : 87,885.60 = 19,138.18 : x
  2. Step 2: Convert to fraction form
    58,581.13/87,885.60 = 19,138.18/x
  3. Step 3: Cross multiply
    58,581.13x = 87,885.60 × 19,138.18
  4. Step 4: Simplify right side
    58,581.13x = 1,681,970,432.21
  5. Step 5: Solve for x
    x = 1,681,970,432.21/58,581.13
  6. Step 6: Final answer
    x = 28,711.81

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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.