Home / 55,577.61-76,689.96-31,702.86

Finding the Fourth Proportional to 55,577.61, 76,689.96 and 31,702.86

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Solution

The fourth proportional to 55,577.61, 76,689.96 and 31,702.86 is: 43,745.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,577.61 : 76,689.96 = 31,702.86 : x
  2. Step 2: Convert to fraction form
    55,577.61/76,689.96 = 31,702.86/x
  3. Step 3: Cross multiply
    55,577.61x = 76,689.96 × 31,702.86
  4. Step 4: Simplify right side
    55,577.61x = 2,431,291,065.29
  5. Step 5: Solve for x
    x = 2,431,291,065.29/55,577.61
  6. Step 6: Final answer
    x = 43,745.87

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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.