Home / 87,617.70-131,426.55-28,459.35

Finding the Fourth Proportional to 87,617.70, 131,426.55 and 28,459.35

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Solution

The fourth proportional to 87,617.70, 131,426.55 and 28,459.35 is: 42,689.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,617.70 : 131,426.55 = 28,459.35 : x
  2. Step 2: Convert to fraction form
    87,617.70/131,426.55 = 28,459.35/x
  3. Step 3: Cross multiply
    87,617.70x = 131,426.55 × 28,459.35
  4. Step 4: Simplify right side
    87,617.70x = 3,740,314,185.74
  5. Step 5: Solve for x
    x = 3,740,314,185.74/87,617.70
  6. Step 6: Final answer
    x = 42,689.03

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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.