Home / 82,719.40-124,077.18-26,559.40

Finding the Fourth Proportional to 82,719.40, 124,077.18 and 26,559.40

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Solution

The fourth proportional to 82,719.40, 124,077.18 and 26,559.40 is: 39,838.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,719.40 : 124,077.18 = 26,559.40 : x
  2. Step 2: Convert to fraction form
    82,719.40/124,077.18 = 26,559.40/x
  3. Step 3: Cross multiply
    82,719.40x = 124,077.18 × 26,559.40
  4. Step 4: Simplify right side
    82,719.40x = 3,295,415,454.49
  5. Step 5: Solve for x
    x = 3,295,415,454.49/82,719.40
  6. Step 6: Final answer
    x = 39,838.48

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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.