Home / 90,707.95-125,181.15-50,425.84

Finding the Fourth Proportional to 90,707.95, 125,181.15 and 50,425.84

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Solution

The fourth proportional to 90,707.95, 125,181.15 and 50,425.84 is: 69,589.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,707.95 : 125,181.15 = 50,425.84 : x
  2. Step 2: Convert to fraction form
    90,707.95/125,181.15 = 50,425.84/x
  3. Step 3: Cross multiply
    90,707.95x = 125,181.15 × 50,425.84
  4. Step 4: Simplify right side
    90,707.95x = 6,312,364,608.30
  5. Step 5: Solve for x
    x = 6,312,364,608.30/90,707.95
  6. Step 6: Final answer
    x = 69,589.98

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Double scale
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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.