Home / 90,369.09-124,707.83-49,532.90

Finding the Fourth Proportional to 90,369.09, 124,707.83 and 49,532.90

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Solution

The fourth proportional to 90,369.09, 124,707.83 and 49,532.90 is: 68,354.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,369.09 : 124,707.83 = 49,532.90 : x
  2. Step 2: Convert to fraction form
    90,369.09/124,707.83 = 49,532.90/x
  3. Step 3: Cross multiply
    90,369.09x = 124,707.83 × 49,532.90
  4. Step 4: Simplify right side
    90,369.09x = 6,177,139,601.40
  5. Step 5: Solve for x
    x = 6,177,139,601.40/90,369.09
  6. Step 6: Final answer
    x = 68,354.56

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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.