Home / 57,039.02-78,711.87-31,888.46

Finding the Fourth Proportional to 57,039.02, 78,711.87 and 31,888.46

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Solution

The fourth proportional to 57,039.02, 78,711.87 and 31,888.46 is: 44,004.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,039.02 : 78,711.87 = 31,888.46 : x
  2. Step 2: Convert to fraction form
    57,039.02/78,711.87 = 31,888.46/x
  3. Step 3: Cross multiply
    57,039.02x = 78,711.87 × 31,888.46
  4. Step 4: Simplify right side
    57,039.02x = 2,510,000,318.02
  5. Step 5: Solve for x
    x = 2,510,000,318.02/57,039.02
  6. Step 6: Final answer
    x = 44,004.97

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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.