Home / 90,201.79-124,476.61-49,915.53

Finding the Fourth Proportional to 90,201.79, 124,476.61 and 49,915.53

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Solution

The fourth proportional to 90,201.79, 124,476.61 and 49,915.53 is: 68,882.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,201.79 : 124,476.61 = 49,915.53 : x
  2. Step 2: Convert to fraction form
    90,201.79/124,476.61 = 49,915.53/x
  3. Step 3: Cross multiply
    90,201.79x = 124,476.61 × 49,915.53
  4. Step 4: Simplify right side
    90,201.79x = 6,213,315,088.79
  5. Step 5: Solve for x
    x = 6,213,315,088.79/90,201.79
  6. Step 6: Final answer
    x = 68,882.39

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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.