Home / 87,506.61-131,226.90-28,326.39

Finding the Fourth Proportional to 87,506.61, 131,226.90 and 28,326.39

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Solution

The fourth proportional to 87,506.61, 131,226.90 and 28,326.39 is: 42,478.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,506.61 : 131,226.90 = 28,326.39 : x
  2. Step 2: Convert to fraction form
    87,506.61/131,226.90 = 28,326.39/x
  3. Step 3: Cross multiply
    87,506.61x = 131,226.90 × 28,326.39
  4. Step 4: Simplify right side
    87,506.61x = 3,717,184,347.89
  5. Step 5: Solve for x
    x = 3,717,184,347.89/87,506.61
  6. Step 6: Final answer
    x = 42,478.90

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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.