Home / 64,343.20-96,500.40-42,311.20

Finding the Fourth Proportional to 64,343.20, 96,500.40 and 42,311.20

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Solution

The fourth proportional to 64,343.20, 96,500.40 and 42,311.20 is: 63,457.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,343.20 : 96,500.40 = 42,311.20 : x
  2. Step 2: Convert to fraction form
    64,343.20/96,500.40 = 42,311.20/x
  3. Step 3: Cross multiply
    64,343.20x = 96,500.40 × 42,311.20
  4. Step 4: Simplify right side
    64,343.20x = 4,083,047,724.48
  5. Step 5: Solve for x
    x = 4,083,047,724.48/64,343.20
  6. Step 6: Final answer
    x = 63,457.33

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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.