Home / 56,865.77-78,474.53-31,373.75

Finding the Fourth Proportional to 56,865.77, 78,474.53 and 31,373.75

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Solution

The fourth proportional to 56,865.77, 78,474.53 and 31,373.75 is: 43,295.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,865.77 : 78,474.53 = 31,373.75 : x
  2. Step 2: Convert to fraction form
    56,865.77/78,474.53 = 31,373.75/x
  3. Step 3: Cross multiply
    56,865.77x = 78,474.53 × 31,373.75
  4. Step 4: Simplify right side
    56,865.77x = 2,462,040,285.59
  5. Step 5: Solve for x
    x = 2,462,040,285.59/56,865.77
  6. Step 6: Final answer
    x = 43,295.65

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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.