Home / 87,346.20-130,905.90-40,499.40

Finding the Fourth Proportional to 87,346.20, 130,905.90 and 40,499.40

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Solution

The fourth proportional to 87,346.20, 130,905.90 and 40,499.40 is: 60,696.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,346.20 : 130,905.90 = 40,499.40 : x
  2. Step 2: Convert to fraction form
    87,346.20/130,905.90 = 40,499.40/x
  3. Step 3: Cross multiply
    87,346.20x = 130,905.90 × 40,499.40
  4. Step 4: Simplify right side
    87,346.20x = 5,301,610,406.46
  5. Step 5: Solve for x
    x = 5,301,610,406.46/87,346.20
  6. Step 6: Final answer
    x = 60,696.52

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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.