Home / 87,255.40-130,748.70-64,964.20

Finding the Fourth Proportional to 87,255.40, 130,748.70 and 64,964.20

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Solution

The fourth proportional to 87,255.40, 130,748.70 and 64,964.20 is: 97,346.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,255.40 : 130,748.70 = 64,964.20 : x
  2. Step 2: Convert to fraction form
    87,255.40/130,748.70 = 64,964.20/x
  3. Step 3: Cross multiply
    87,255.40x = 130,748.70 × 64,964.20
  4. Step 4: Simplify right side
    87,255.40x = 8,493,984,696.54
  5. Step 5: Solve for x
    x = 8,493,984,696.54/87,255.40
  6. Step 6: Final answer
    x = 97,346.24

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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.