Home / 91,149.24-136,737.54-31,974.49

Finding the Fourth Proportional to 91,149.24, 136,737.54 and 31,974.49

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Solution

The fourth proportional to 91,149.24, 136,737.54 and 31,974.49 is: 47,966.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,149.24 : 136,737.54 = 31,974.49 : x
  2. Step 2: Convert to fraction form
    91,149.24/136,737.54 = 31,974.49/x
  3. Step 3: Cross multiply
    91,149.24x = 136,737.54 × 31,974.49
  4. Step 4: Simplify right side
    91,149.24x = 4,372,113,276.28
  5. Step 5: Solve for x
    x = 4,372,113,276.28/91,149.24
  6. Step 6: Final answer
    x = 47,966.53

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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.