Home / 56,637.73-78,162.07-31,146.02

Finding the Fourth Proportional to 56,637.73, 78,162.07 and 31,146.02

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Solution

The fourth proportional to 56,637.73, 78,162.07 and 31,146.02 is: 42,982.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,637.73 : 78,162.07 = 31,146.02 : x
  2. Step 2: Convert to fraction form
    56,637.73/78,162.07 = 31,146.02/x
  3. Step 3: Cross multiply
    56,637.73x = 78,162.07 × 31,146.02
  4. Step 4: Simplify right side
    56,637.73x = 2,434,437,395.46
  5. Step 5: Solve for x
    x = 2,434,437,395.46/56,637.73
  6. Step 6: Final answer
    x = 42,982.61

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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.