Home / 87,816.18-131,737.08-28,637.30

Finding the Fourth Proportional to 87,816.18, 131,737.08 and 28,637.30

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Solution

The fourth proportional to 87,816.18, 131,737.08 and 28,637.30 is: 42,960.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,816.18 : 131,737.08 = 28,637.30 : x
  2. Step 2: Convert to fraction form
    87,816.18/131,737.08 = 28,637.30/x
  3. Step 3: Cross multiply
    87,816.18x = 131,737.08 × 28,637.30
  4. Step 4: Simplify right side
    87,816.18x = 3,772,594,281.08
  5. Step 5: Solve for x
    x = 3,772,594,281.08/87,816.18
  6. Step 6: Final answer
    x = 42,960.13

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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.