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Finding the Fourth Proportional to 87,610.78, 131,420.40 and 24,430.78

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Solution

The fourth proportional to 87,610.78, 131,420.40 and 24,430.78 is: 36,647.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,610.78 : 131,420.40 = 24,430.78 : x
  2. Step 2: Convert to fraction form
    87,610.78/131,420.40 = 24,430.78/x
  3. Step 3: Cross multiply
    87,610.78x = 131,420.40 × 24,430.78
  4. Step 4: Simplify right side
    87,610.78x = 3,210,702,879.91
  5. Step 5: Solve for x
    x = 3,210,702,879.91/87,610.78
  6. Step 6: Final answer
    x = 36,647.35

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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.