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Finding the Fourth Proportional to 60,246.30, 90,369.45 and 15,879.90

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Solution

The fourth proportional to 60,246.30, 90,369.45 and 15,879.90 is: 23,819.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,246.30 : 90,369.45 = 15,879.90 : x
  2. Step 2: Convert to fraction form
    60,246.30/90,369.45 = 15,879.90/x
  3. Step 3: Cross multiply
    60,246.30x = 90,369.45 × 15,879.90
  4. Step 4: Simplify right side
    60,246.30x = 1,435,057,829.06
  5. Step 5: Solve for x
    x = 1,435,057,829.06/60,246.30
  6. Step 6: Final answer
    x = 23,819.85

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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.