Home / 90,038.52-124,251.77-49,751.55

Finding the Fourth Proportional to 90,038.52, 124,251.77 and 49,751.55

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Solution

The fourth proportional to 90,038.52, 124,251.77 and 49,751.55 is: 68,656.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,038.52 : 124,251.77 = 49,751.55 : x
  2. Step 2: Convert to fraction form
    90,038.52/124,251.77 = 49,751.55/x
  3. Step 3: Cross multiply
    90,038.52x = 124,251.77 × 49,751.55
  4. Step 4: Simplify right side
    90,038.52x = 6,181,718,272.12
  5. Step 5: Solve for x
    x = 6,181,718,272.12/90,038.52
  6. Step 6: Final answer
    x = 68,656.37

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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.