Home / 87,505.61-131,225.40-28,325.39

Finding the Fourth Proportional to 87,505.61, 131,225.40 and 28,325.39

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Solution

The fourth proportional to 87,505.61, 131,225.40 and 28,325.39 is: 42,477.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,505.61 : 131,225.40 = 28,325.39 : x
  2. Step 2: Convert to fraction form
    87,505.61/131,225.40 = 28,325.39/x
  3. Step 3: Cross multiply
    87,505.61x = 131,225.40 × 28,325.39
  4. Step 4: Simplify right side
    87,505.61x = 3,717,009,976.78
  5. Step 5: Solve for x
    x = 3,717,009,976.78/87,505.61
  6. Step 6: Final answer
    x = 42,477.39

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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.