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Finding the Fourth Proportional to 58,176, 87,264 and 18,737.10

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Solution

The fourth proportional to 58,176, 87,264 and 18,737.10 is: 28,105.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,176 : 87,264 = 18,737.10 : x
  2. Step 2: Convert to fraction form
    58,176/87,264 = 18,737.10/x
  3. Step 3: Cross multiply
    58,176x = 87,264 × 18,737.10
  4. Step 4: Simplify right side
    58,176x = 1,635,074,294.40
  5. Step 5: Solve for x
    x = 1,635,074,294.40/58,176
  6. Step 6: Final answer
    x = 28,105.65

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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.