Home / 90,904.32-125,447.61-50,618.55

Finding the Fourth Proportional to 90,904.32, 125,447.61 and 50,618.55

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Solution

The fourth proportional to 90,904.32, 125,447.61 and 50,618.55 is: 69,853.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,904.32 : 125,447.61 = 50,618.55 : x
  2. Step 2: Convert to fraction form
    90,904.32/125,447.61 = 50,618.55/x
  3. Step 3: Cross multiply
    90,904.32x = 125,447.61 × 50,618.55
  4. Step 4: Simplify right side
    90,904.32x = 6,349,976,119.17
  5. Step 5: Solve for x
    x = 6,349,976,119.17/90,904.32
  6. Step 6: Final answer
    x = 69,853.40

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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.