Home / 90,141.82-124,396.32-49,306.18

Finding the Fourth Proportional to 90,141.82, 124,396.32 and 49,306.18

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Solution

The fourth proportional to 90,141.82, 124,396.32 and 49,306.18 is: 68,042.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,141.82 : 124,396.32 = 49,306.18 : x
  2. Step 2: Convert to fraction form
    90,141.82/124,396.32 = 49,306.18/x
  3. Step 3: Cross multiply
    90,141.82x = 124,396.32 × 49,306.18
  4. Step 4: Simplify right side
    90,141.82x = 6,133,507,345.26
  5. Step 5: Solve for x
    x = 6,133,507,345.26/90,141.82
  6. Step 6: Final answer
    x = 68,042.86

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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.