Home / 91,531.93-137,318.60-49,411.11

Finding the Fourth Proportional to 91,531.93, 137,318.60 and 49,411.11

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Solution

The fourth proportional to 91,531.93, 137,318.60 and 49,411.11 is: 74,127.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,531.93 : 137,318.60 = 49,411.11 : x
  2. Step 2: Convert to fraction form
    91,531.93/137,318.60 = 49,411.11/x
  3. Step 3: Cross multiply
    91,531.93x = 137,318.60 × 49,411.11
  4. Step 4: Simplify right side
    91,531.93x = 6,785,063,975.95
  5. Step 5: Solve for x
    x = 6,785,063,975.95/91,531.93
  6. Step 6: Final answer
    x = 74,127.84

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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.