Home / 74,545.46-102,915.20-49,125.72

Finding the Fourth Proportional to 74,545.46, 102,915.20 and 49,125.72

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Solution

The fourth proportional to 74,545.46, 102,915.20 and 49,125.72 is: 67,821.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,545.46 : 102,915.20 = 49,125.72 : x
  2. Step 2: Convert to fraction form
    74,545.46/102,915.20 = 49,125.72/x
  3. Step 3: Cross multiply
    74,545.46x = 102,915.20 × 49,125.72
  4. Step 4: Simplify right side
    74,545.46x = 5,055,783,298.94
  5. Step 5: Solve for x
    x = 5,055,783,298.94/74,545.46
  6. Step 6: Final answer
    x = 67,821.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.