Home / 90,020.75-124,228.64-50,276.75

Finding the Fourth Proportional to 90,020.75, 124,228.64 and 50,276.75

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Solution

The fourth proportional to 90,020.75, 124,228.64 and 50,276.75 is: 69,381.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,020.75 : 124,228.64 = 50,276.75 : x
  2. Step 2: Convert to fraction form
    90,020.75/124,228.64 = 50,276.75/x
  3. Step 3: Cross multiply
    90,020.75x = 124,228.64 × 50,276.75
  4. Step 4: Simplify right side
    90,020.75x = 6,245,812,276.12
  5. Step 5: Solve for x
    x = 6,245,812,276.12/90,020.75
  6. Step 6: Final answer
    x = 69,381.92

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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.