Home / 90,124.40-124,369.32-49,837.04

Finding the Fourth Proportional to 90,124.40, 124,369.32 and 49,837.04

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Solution

The fourth proportional to 90,124.40, 124,369.32 and 49,837.04 is: 68,773.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,124.40 : 124,369.32 = 49,837.04 : x
  2. Step 2: Convert to fraction form
    90,124.40/124,369.32 = 49,837.04/x
  3. Step 3: Cross multiply
    90,124.40x = 124,369.32 × 49,837.04
  4. Step 4: Simplify right side
    90,124.40x = 6,198,198,775.61
  5. Step 5: Solve for x
    x = 6,198,198,775.61/90,124.40
  6. Step 6: Final answer
    x = 68,773.81

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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.