Home / 90,084.48-124,235.64-75,027.12

Finding the Fourth Proportional to 90,084.48, 124,235.64 and 75,027.12

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Solution

The fourth proportional to 90,084.48, 124,235.64 and 75,027.12 is: 103,470.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,084.48 : 124,235.64 = 75,027.12 : x
  2. Step 2: Convert to fraction form
    90,084.48/124,235.64 = 75,027.12/x
  3. Step 3: Cross multiply
    90,084.48x = 124,235.64 × 75,027.12
  4. Step 4: Simplify right side
    90,084.48x = 9,321,042,270.56
  5. Step 5: Solve for x
    x = 9,321,042,270.56/90,084.48
  6. Step 6: Final answer
    x = 103,470.01

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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.