Home / 55,708.60-76,859.10-31,818.52

Finding the Fourth Proportional to 55,708.60, 76,859.10 and 31,818.52

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Solution

The fourth proportional to 55,708.60, 76,859.10 and 31,818.52 is: 43,898.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,708.60 : 76,859.10 = 31,818.52 : x
  2. Step 2: Convert to fraction form
    55,708.60/76,859.10 = 31,818.52/x
  3. Step 3: Cross multiply
    55,708.60x = 76,859.10 × 31,818.52
  4. Step 4: Simplify right side
    55,708.60x = 2,445,542,810.53
  5. Step 5: Solve for x
    x = 2,445,542,810.53/55,708.60
  6. Step 6: Final answer
    x = 43,898.84

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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.