Home / 55,687.47-76,853.14-31,493.53

Finding the Fourth Proportional to 55,687.47, 76,853.14 and 31,493.53

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Solution

The fourth proportional to 55,687.47, 76,853.14 and 31,493.53 is: 43,463.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,687.47 : 76,853.14 = 31,493.53 : x
  2. Step 2: Convert to fraction form
    55,687.47/76,853.14 = 31,493.53/x
  3. Step 3: Cross multiply
    55,687.47x = 76,853.14 × 31,493.53
  4. Step 4: Simplify right side
    55,687.47x = 2,420,376,670.18
  5. Step 5: Solve for x
    x = 2,420,376,670.18/55,687.47
  6. Step 6: Final answer
    x = 43,463.58

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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.