Home / 57,036.76-78,709.29-31,542.45

Finding the Fourth Proportional to 57,036.76, 78,709.29 and 31,542.45

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Solution

The fourth proportional to 57,036.76, 78,709.29 and 31,542.45 is: 43,527.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,036.76 : 78,709.29 = 31,542.45 : x
  2. Step 2: Convert to fraction form
    57,036.76/78,709.29 = 31,542.45/x
  3. Step 3: Cross multiply
    57,036.76x = 78,709.29 × 31,542.45
  4. Step 4: Simplify right side
    57,036.76x = 2,482,683,844.36
  5. Step 5: Solve for x
    x = 2,482,683,844.36/57,036.76
  6. Step 6: Final answer
    x = 43,527.79

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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.