Home / 90,304.18-124,620-50,018.59

Finding the Fourth Proportional to 90,304.18, 124,620 and 50,018.59

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Solution

The fourth proportional to 90,304.18, 124,620 and 50,018.59 is: 69,025.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,304.18 : 124,620 = 50,018.59 : x
  2. Step 2: Convert to fraction form
    90,304.18/124,620 = 50,018.59/x
  3. Step 3: Cross multiply
    90,304.18x = 124,620 × 50,018.59
  4. Step 4: Simplify right side
    90,304.18x = 6,233,316,685.80
  5. Step 5: Solve for x
    x = 6,233,316,685.80/90,304.18
  6. Step 6: Final answer
    x = 69,025.78

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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.