Home / 91,920.04-137,919.14-51,944.52

Finding the Fourth Proportional to 91,920.04, 137,919.14 and 51,944.52

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Solution

The fourth proportional to 91,920.04, 137,919.14 and 51,944.52 is: 77,938.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,920.04 : 137,919.14 = 51,944.52 : x
  2. Step 2: Convert to fraction form
    91,920.04/137,919.14 = 51,944.52/x
  3. Step 3: Cross multiply
    91,920.04x = 137,919.14 × 51,944.52
  4. Step 4: Simplify right side
    91,920.04x = 7,164,143,526.11
  5. Step 5: Solve for x
    x = 7,164,143,526.11/91,920.04
  6. Step 6: Final answer
    x = 77,938.86

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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.