Home / 36,081.12-54,126-12,702.72

Finding the Fourth Proportional to 36,081.12, 54,126 and 12,702.72

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Solution

The fourth proportional to 36,081.12, 54,126 and 12,702.72 is: 19,055.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,081.12 : 54,126 = 12,702.72 : x
  2. Step 2: Convert to fraction form
    36,081.12/54,126 = 12,702.72/x
  3. Step 3: Cross multiply
    36,081.12x = 54,126 × 12,702.72
  4. Step 4: Simplify right side
    36,081.12x = 687,547,422.72
  5. Step 5: Solve for x
    x = 687,547,422.72/36,081.12
  6. Step 6: Final answer
    x = 19,055.60

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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.