Home / 90,136.28-124,390.25-49,304.25

Finding the Fourth Proportional to 90,136.28, 124,390.25 and 49,304.25

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Solution

The fourth proportional to 90,136.28, 124,390.25 and 49,304.25 is: 68,041.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,136.28 : 124,390.25 = 49,304.25 : x
  2. Step 2: Convert to fraction form
    90,136.28/124,390.25 = 49,304.25/x
  3. Step 3: Cross multiply
    90,136.28x = 124,390.25 × 49,304.25
  4. Step 4: Simplify right side
    90,136.28x = 6,132,967,640.36
  5. Step 5: Solve for x
    x = 6,132,967,640.36/90,136.28
  6. Step 6: Final answer
    x = 68,041.05

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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.