Home / 90,319.78-124,641.28-50,036.16

Finding the Fourth Proportional to 90,319.78, 124,641.28 and 50,036.16

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Solution

The fourth proportional to 90,319.78, 124,641.28 and 50,036.16 is: 69,049.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,319.78 : 124,641.28 = 50,036.16 : x
  2. Step 2: Convert to fraction form
    90,319.78/124,641.28 = 50,036.16/x
  3. Step 3: Cross multiply
    90,319.78x = 124,641.28 × 50,036.16
  4. Step 4: Simplify right side
    90,319.78x = 6,236,571,028.68
  5. Step 5: Solve for x
    x = 6,236,571,028.68/90,319.78
  6. Step 6: Final answer
    x = 69,049.89

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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.