Home / 56,123.45-77,452.16-31,923.79

Finding the Fourth Proportional to 56,123.45, 77,452.16 and 31,923.79

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Solution

The fourth proportional to 56,123.45, 77,452.16 and 31,923.79 is: 44,055.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,123.45 : 77,452.16 = 31,923.79 : x
  2. Step 2: Convert to fraction form
    56,123.45/77,452.16 = 31,923.79/x
  3. Step 3: Cross multiply
    56,123.45x = 77,452.16 × 31,923.79
  4. Step 4: Simplify right side
    56,123.45x = 2,472,566,377.07
  5. Step 5: Solve for x
    x = 2,472,566,377.07/56,123.45
  6. Step 6: Final answer
    x = 44,055.86

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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.