Home / 82,889.24-124,334.76-66,354.40

Finding the Fourth Proportional to 82,889.24, 124,334.76 and 66,354.40

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Solution

The fourth proportional to 82,889.24, 124,334.76 and 66,354.40 is: 99,532.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,889.24 : 124,334.76 = 66,354.40 : x
  2. Step 2: Convert to fraction form
    82,889.24/124,334.76 = 66,354.40/x
  3. Step 3: Cross multiply
    82,889.24x = 124,334.76 × 66,354.40
  4. Step 4: Simplify right side
    82,889.24x = 8,250,158,398.94
  5. Step 5: Solve for x
    x = 8,250,158,398.94/82,889.24
  6. Step 6: Final answer
    x = 99,532.32

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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.