Home / 91,499.76-137,336.31-47,157.12

Finding the Fourth Proportional to 91,499.76, 137,336.31 and 47,157.12

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Solution

The fourth proportional to 91,499.76, 137,336.31 and 47,157.12 is: 70,780.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,499.76 : 137,336.31 = 47,157.12 : x
  2. Step 2: Convert to fraction form
    91,499.76/137,336.31 = 47,157.12/x
  3. Step 3: Cross multiply
    91,499.76x = 137,336.31 × 47,157.12
  4. Step 4: Simplify right side
    91,499.76x = 6,476,384,851.03
  5. Step 5: Solve for x
    x = 6,476,384,851.03/91,499.76
  6. Step 6: Final answer
    x = 70,780.35

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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.