Home / 90,111.78-124,349.23-49,823.12

Finding the Fourth Proportional to 90,111.78, 124,349.23 and 49,823.12

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Solution

The fourth proportional to 90,111.78, 124,349.23 and 49,823.12 is: 68,753.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,111.78 : 124,349.23 = 49,823.12 : x
  2. Step 2: Convert to fraction form
    90,111.78/124,349.23 = 49,823.12/x
  3. Step 3: Cross multiply
    90,111.78x = 124,349.23 × 49,823.12
  4. Step 4: Simplify right side
    90,111.78x = 6,195,466,608.20
  5. Step 5: Solve for x
    x = 6,195,466,608.20/90,111.78
  6. Step 6: Final answer
    x = 68,753.13

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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.