Home / 82,948.66-124,422.95-20,619.16

Finding the Fourth Proportional to 82,948.66, 124,422.95 and 20,619.16

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Solution

The fourth proportional to 82,948.66, 124,422.95 and 20,619.16 is: 30,928.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,948.66 : 124,422.95 = 20,619.16 : x
  2. Step 2: Convert to fraction form
    82,948.66/124,422.95 = 20,619.16/x
  3. Step 3: Cross multiply
    82,948.66x = 124,422.95 × 20,619.16
  4. Step 4: Simplify right side
    82,948.66x = 2,565,496,454.21
  5. Step 5: Solve for x
    x = 2,565,496,454.21/82,948.66
  6. Step 6: Final answer
    x = 30,928.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.