Home / 51,739.86-77,664.08-45,854.40

Finding the Fourth Proportional to 51,739.86, 77,664.08 and 45,854.40

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Solution

The fourth proportional to 51,739.86, 77,664.08 and 45,854.40 is: 68,829.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,739.86 : 77,664.08 = 45,854.40 : x
  2. Step 2: Convert to fraction form
    51,739.86/77,664.08 = 45,854.40/x
  3. Step 3: Cross multiply
    51,739.86x = 77,664.08 × 45,854.40
  4. Step 4: Simplify right side
    51,739.86x = 3,561,239,789.95
  5. Step 5: Solve for x
    x = 3,561,239,789.95/51,739.86
  6. Step 6: Final answer
    x = 68,829.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.