Home / 91,681.61-137,576.03-38,369.13

Finding the Fourth Proportional to 91,681.61, 137,576.03 and 38,369.13

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Solution

The fourth proportional to 91,681.61, 137,576.03 and 38,369.13 is: 57,576.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,681.61 : 137,576.03 = 38,369.13 : x
  2. Step 2: Convert to fraction form
    91,681.61/137,576.03 = 38,369.13/x
  3. Step 3: Cross multiply
    91,681.61x = 137,576.03 × 38,369.13
  4. Step 4: Simplify right side
    91,681.61x = 5,278,672,861.89
  5. Step 5: Solve for x
    x = 5,278,672,861.89/91,681.61
  6. Step 6: Final answer
    x = 57,576.14

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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.