Home / 90,369.16-124,709.20-49,534.28

Finding the Fourth Proportional to 90,369.16, 124,709.20 and 49,534.28

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Solution

The fourth proportional to 90,369.16, 124,709.20 and 49,534.28 is: 68,357.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,369.16 : 124,709.20 = 49,534.28 : x
  2. Step 2: Convert to fraction form
    90,369.16/124,709.20 = 49,534.28/x
  3. Step 3: Cross multiply
    90,369.16x = 124,709.20 × 49,534.28
  4. Step 4: Simplify right side
    90,369.16x = 6,177,380,431.38
  5. Step 5: Solve for x
    x = 6,177,380,431.38/90,369.16
  6. Step 6: Final answer
    x = 68,357.17

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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.