Home / 91,433.52-137,161.08-38,813.76

Finding the Fourth Proportional to 91,433.52, 137,161.08 and 38,813.76

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Solution

The fourth proportional to 91,433.52, 137,161.08 and 38,813.76 is: 58,225.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,433.52 : 137,161.08 = 38,813.76 : x
  2. Step 2: Convert to fraction form
    91,433.52/137,161.08 = 38,813.76/x
  3. Step 3: Cross multiply
    91,433.52x = 137,161.08 × 38,813.76
  4. Step 4: Simplify right side
    91,433.52x = 5,323,737,240.46
  5. Step 5: Solve for x
    x = 5,323,737,240.46/91,433.52
  6. Step 6: Final answer
    x = 58,225.22

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1.5x scale

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.