Home / 87,530.60-131,295.90-28,368.20

Finding the Fourth Proportional to 87,530.60, 131,295.90 and 28,368.20

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Solution

The fourth proportional to 87,530.60, 131,295.90 and 28,368.20 is: 42,552.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,530.60 : 131,295.90 = 28,368.20 : x
  2. Step 2: Convert to fraction form
    87,530.60/131,295.90 = 28,368.20/x
  3. Step 3: Cross multiply
    87,530.60x = 131,295.90 × 28,368.20
  4. Step 4: Simplify right side
    87,530.60x = 3,724,628,350.38
  5. Step 5: Solve for x
    x = 3,724,628,350.38/87,530.60
  6. Step 6: Final answer
    x = 42,552.30

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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.