Home / 90,822.27-136,234.11-31,657.77

Finding the Fourth Proportional to 90,822.27, 136,234.11 and 31,657.77

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Solution

The fourth proportional to 90,822.27, 136,234.11 and 31,657.77 is: 47,486.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,822.27 : 136,234.11 = 31,657.77 : x
  2. Step 2: Convert to fraction form
    90,822.27/136,234.11 = 31,657.77/x
  3. Step 3: Cross multiply
    90,822.27x = 136,234.11 × 31,657.77
  4. Step 4: Simplify right side
    90,822.27x = 4,312,868,120.53
  5. Step 5: Solve for x
    x = 4,312,868,120.53/90,822.27
  6. Step 6: Final answer
    x = 47,486.90

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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.