Home / 91,549.48-137,344.88-49,428.64

Finding the Fourth Proportional to 91,549.48, 137,344.88 and 49,428.64

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Solution

The fourth proportional to 91,549.48, 137,344.88 and 49,428.64 is: 74,154.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,549.48 : 137,344.88 = 49,428.64 : x
  2. Step 2: Convert to fraction form
    91,549.48/137,344.88 = 49,428.64/x
  3. Step 3: Cross multiply
    91,549.48x = 137,344.88 × 49,428.64
  4. Step 4: Simplify right side
    91,549.48x = 6,788,770,629.36
  5. Step 5: Solve for x
    x = 6,788,770,629.36/91,549.48
  6. Step 6: Final answer
    x = 74,154.11

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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.