Home / 91,981.23-137,988.96-32,007.21

Finding the Fourth Proportional to 91,981.23, 137,988.96 and 32,007.21

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Solution

The fourth proportional to 91,981.23, 137,988.96 and 32,007.21 is: 48,016.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,981.23 : 137,988.96 = 32,007.21 : x
  2. Step 2: Convert to fraction form
    91,981.23/137,988.96 = 32,007.21/x
  3. Step 3: Cross multiply
    91,981.23x = 137,988.96 × 32,007.21
  4. Step 4: Simplify right side
    91,981.23x = 4,416,641,620.40
  5. Step 5: Solve for x
    x = 4,416,641,620.40/91,981.23
  6. Step 6: Final answer
    x = 48,016.77

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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.