Home / 57,039.18-78,717.51-31,888.86

Finding the Fourth Proportional to 57,039.18, 78,717.51 and 31,888.86

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Solution

The fourth proportional to 57,039.18, 78,717.51 and 31,888.86 is: 44,008.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,039.18 : 78,717.51 = 31,888.86 : x
  2. Step 2: Convert to fraction form
    57,039.18/78,717.51 = 31,888.86/x
  3. Step 3: Cross multiply
    57,039.18x = 78,717.51 × 31,888.86
  4. Step 4: Simplify right side
    57,039.18x = 2,510,211,655.94
  5. Step 5: Solve for x
    x = 2,510,211,655.94/57,039.18
  6. Step 6: Final answer
    x = 44,008.55

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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.