Home / 64,821.18-89,452.68-36,140.48

Finding the Fourth Proportional to 64,821.18, 89,452.68 and 36,140.48

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Solution

The fourth proportional to 64,821.18, 89,452.68 and 36,140.48 is: 49,873.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,821.18 : 89,452.68 = 36,140.48 : x
  2. Step 2: Convert to fraction form
    64,821.18/89,452.68 = 36,140.48/x
  3. Step 3: Cross multiply
    64,821.18x = 89,452.68 × 36,140.48
  4. Step 4: Simplify right side
    64,821.18x = 3,232,862,792.49
  5. Step 5: Solve for x
    x = 3,232,862,792.49/64,821.18
  6. Step 6: Final answer
    x = 49,873.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.