Home / 91,623.92-137,339.96-38,346.42

Finding the Fourth Proportional to 91,623.92, 137,339.96 and 38,346.42

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Solution

The fourth proportional to 91,623.92, 137,339.96 and 38,346.42 is: 57,479.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,623.92 : 137,339.96 = 38,346.42 : x
  2. Step 2: Convert to fraction form
    91,623.92/137,339.96 = 38,346.42/x
  3. Step 3: Cross multiply
    91,623.92x = 137,339.96 × 38,346.42
  4. Step 4: Simplify right side
    91,623.92x = 5,266,495,597.21
  5. Step 5: Solve for x
    x = 5,266,495,597.21/91,623.92
  6. Step 6: Final answer
    x = 57,479.49

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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.