Home / 57,065.52-78,748.92-31,917.36

Finding the Fourth Proportional to 57,065.52, 78,748.92 and 31,917.36

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Solution

The fourth proportional to 57,065.52, 78,748.92 and 31,917.36 is: 44,045.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,065.52 : 78,748.92 = 31,917.36 : x
  2. Step 2: Convert to fraction form
    57,065.52/78,748.92 = 31,917.36/x
  3. Step 3: Cross multiply
    57,065.52x = 78,748.92 × 31,917.36
  4. Step 4: Simplify right side
    57,065.52x = 2,513,457,629.25
  5. Step 5: Solve for x
    x = 2,513,457,629.25/57,065.52
  6. Step 6: Final answer
    x = 44,045.12

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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.