Home / 87,490.04-131,255.91-28,325.72

Finding the Fourth Proportional to 87,490.04, 131,255.91 and 28,325.72

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Solution

The fourth proportional to 87,490.04, 131,255.91 and 28,325.72 is: 42,495.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,490.04 : 131,255.91 = 28,325.72 : x
  2. Step 2: Convert to fraction form
    87,490.04/131,255.91 = 28,325.72/x
  3. Step 3: Cross multiply
    87,490.04x = 131,255.91 × 28,325.72
  4. Step 4: Simplify right side
    87,490.04x = 3,717,918,483.14
  5. Step 5: Solve for x
    x = 3,717,918,483.14/87,490.04
  6. Step 6: Final answer
    x = 42,495.34

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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.