Home / 89,605.50-134,356.65-53,617.78

Finding the Fourth Proportional to 89,605.50, 134,356.65 and 53,617.78

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Solution

The fourth proportional to 89,605.50, 134,356.65 and 53,617.78 is: 80,395.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,605.50 : 134,356.65 = 53,617.78 : x
  2. Step 2: Convert to fraction form
    89,605.50/134,356.65 = 53,617.78/x
  3. Step 3: Cross multiply
    89,605.50x = 134,356.65 × 53,617.78
  4. Step 4: Simplify right side
    89,605.50x = 7,203,905,301.24
  5. Step 5: Solve for x
    x = 7,203,905,301.24/89,605.50
  6. Step 6: Final answer
    x = 80,395.79

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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.