Home / 56,529.86-78,007.29-31,377.38

Finding the Fourth Proportional to 56,529.86, 78,007.29 and 31,377.38

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Solution

The fourth proportional to 56,529.86, 78,007.29 and 31,377.38 is: 43,298.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,529.86 : 78,007.29 = 31,377.38 : x
  2. Step 2: Convert to fraction form
    56,529.86/78,007.29 = 31,377.38/x
  3. Step 3: Cross multiply
    56,529.86x = 78,007.29 × 31,377.38
  4. Step 4: Simplify right side
    56,529.86x = 2,447,663,991.06
  5. Step 5: Solve for x
    x = 2,447,663,991.06/56,529.86
  6. Step 6: Final answer
    x = 43,298.61

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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.