Home / 56,983.76-78,637.80-31,833.68

Finding the Fourth Proportional to 56,983.76, 78,637.80 and 31,833.68

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Solution

The fourth proportional to 56,983.76, 78,637.80 and 31,833.68 is: 43,930.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,983.76 : 78,637.80 = 31,833.68 : x
  2. Step 2: Convert to fraction form
    56,983.76/78,637.80 = 31,833.68/x
  3. Step 3: Cross multiply
    56,983.76x = 78,637.80 × 31,833.68
  4. Step 4: Simplify right side
    56,983.76x = 2,503,330,561.10
  5. Step 5: Solve for x
    x = 2,503,330,561.10/56,983.76
  6. Step 6: Final answer
    x = 43,930.60

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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.