Home / 55,578.16-76,702.12-31,705.36

Finding the Fourth Proportional to 55,578.16, 76,702.12 and 31,705.36

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Solution

The fourth proportional to 55,578.16, 76,702.12 and 31,705.36 is: 43,755.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,578.16 : 76,702.12 = 31,705.36 : x
  2. Step 2: Convert to fraction form
    55,578.16/76,702.12 = 31,705.36/x
  3. Step 3: Cross multiply
    55,578.16x = 76,702.12 × 31,705.36
  4. Step 4: Simplify right side
    55,578.16x = 2,431,868,327.36
  5. Step 5: Solve for x
    x = 2,431,868,327.36/55,578.16
  6. Step 6: Final answer
    x = 43,755.83

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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.