Home / 65,664.20-98,569.20-40,732.40

Finding the Fourth Proportional to 65,664.20, 98,569.20 and 40,732.40

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Solution

The fourth proportional to 65,664.20, 98,569.20 and 40,732.40 is: 61,143.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,664.20 : 98,569.20 = 40,732.40 : x
  2. Step 2: Convert to fraction form
    65,664.20/98,569.20 = 40,732.40/x
  3. Step 3: Cross multiply
    65,664.20x = 98,569.20 × 40,732.40
  4. Step 4: Simplify right side
    65,664.20x = 4,014,960,082.08
  5. Step 5: Solve for x
    x = 4,014,960,082.08/65,664.20
  6. Step 6: Final answer
    x = 61,143.82

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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.