Home / 90,321.78-124,644.04-50,038.16

Finding the Fourth Proportional to 90,321.78, 124,644.04 and 50,038.16

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Solution

The fourth proportional to 90,321.78, 124,644.04 and 50,038.16 is: 69,052.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,321.78 : 124,644.04 = 50,038.16 : x
  2. Step 2: Convert to fraction form
    90,321.78/124,644.04 = 50,038.16/x
  3. Step 3: Cross multiply
    90,321.78x = 124,644.04 × 50,038.16
  4. Step 4: Simplify right side
    90,321.78x = 6,236,958,416.57
  5. Step 5: Solve for x
    x = 6,236,958,416.57/90,321.78
  6. Step 6: Final answer
    x = 69,052.65

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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.