Home / 90,818.80-125,327.40-50,530.48

Finding the Fourth Proportional to 90,818.80, 125,327.40 and 50,530.48

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Solution

The fourth proportional to 90,818.80, 125,327.40 and 50,530.48 is: 69,730.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,818.80 : 125,327.40 = 50,530.48 : x
  2. Step 2: Convert to fraction form
    90,818.80/125,327.40 = 50,530.48/x
  3. Step 3: Cross multiply
    90,818.80x = 125,327.40 × 50,530.48
  4. Step 4: Simplify right side
    90,818.80x = 6,332,853,679.15
  5. Step 5: Solve for x
    x = 6,332,853,679.15/90,818.80
  6. Step 6: Final answer
    x = 69,730.65

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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.