Home / 90,836.75-125,356.65-50,557.70

Finding the Fourth Proportional to 90,836.75, 125,356.65 and 50,557.70

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Solution

The fourth proportional to 90,836.75, 125,356.65 and 50,557.70 is: 69,770.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,836.75 : 125,356.65 = 50,557.70 : x
  2. Step 2: Convert to fraction form
    90,836.75/125,356.65 = 50,557.70/x
  3. Step 3: Cross multiply
    90,836.75x = 125,356.65 × 50,557.70
  4. Step 4: Simplify right side
    90,836.75x = 6,337,743,903.71
  5. Step 5: Solve for x
    x = 6,337,743,903.71/90,836.75
  6. Step 6: Final answer
    x = 69,770.70

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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.