Home / 55,718.10-76,872.28-31,827.86

Finding the Fourth Proportional to 55,718.10, 76,872.28 and 31,827.86

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Solution

The fourth proportional to 55,718.10, 76,872.28 and 31,827.86 is: 43,911.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,718.10 : 76,872.28 = 31,827.86 : x
  2. Step 2: Convert to fraction form
    55,718.10/76,872.28 = 31,827.86/x
  3. Step 3: Cross multiply
    55,718.10x = 76,872.28 × 31,827.86
  4. Step 4: Simplify right side
    55,718.10x = 2,446,679,990.06
  5. Step 5: Solve for x
    x = 2,446,679,990.06/55,718.10
  6. Step 6: Final answer
    x = 43,911.76

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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.