Home / 90,693.20-125,154.08-50,405.92

Finding the Fourth Proportional to 90,693.20, 125,154.08 and 50,405.92

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Solution

The fourth proportional to 90,693.20, 125,154.08 and 50,405.92 is: 69,558.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,693.20 : 125,154.08 = 50,405.92 : x
  2. Step 2: Convert to fraction form
    90,693.20/125,154.08 = 50,405.92/x
  3. Step 3: Cross multiply
    90,693.20x = 125,154.08 × 50,405.92
  4. Step 4: Simplify right side
    90,693.20x = 6,308,506,544.15
  5. Step 5: Solve for x
    x = 6,308,506,544.15/90,693.20
  6. Step 6: Final answer
    x = 69,558.76

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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.