Home / 57,011.66-78,698.04-51,032.78

Finding the Fourth Proportional to 57,011.66, 78,698.04 and 51,032.78

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Solution

The fourth proportional to 57,011.66, 78,698.04 and 51,032.78 is: 70,444.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,011.66 : 78,698.04 = 51,032.78 : x
  2. Step 2: Convert to fraction form
    57,011.66/78,698.04 = 51,032.78/x
  3. Step 3: Cross multiply
    57,011.66x = 78,698.04 × 51,032.78
  4. Step 4: Simplify right side
    57,011.66x = 4,016,179,761.75
  5. Step 5: Solve for x
    x = 4,016,179,761.75/57,011.66
  6. Step 6: Final answer
    x = 70,444.88

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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.