Home / 87,605.01-131,412.51-28,445.72

Finding the Fourth Proportional to 87,605.01, 131,412.51 and 28,445.72

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Solution

The fourth proportional to 87,605.01, 131,412.51 and 28,445.72 is: 42,670.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,605.01 : 131,412.51 = 28,445.72 : x
  2. Step 2: Convert to fraction form
    87,605.01/131,412.51 = 28,445.72/x
  3. Step 3: Cross multiply
    87,605.01x = 131,412.51 × 28,445.72
  4. Step 4: Simplify right side
    87,605.01x = 3,738,122,806.89
  5. Step 5: Solve for x
    x = 3,738,122,806.89/87,605.01
  6. Step 6: Final answer
    x = 42,670.19

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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.