Home / 56,932.89-78,565.80-31,438.77

Finding the Fourth Proportional to 56,932.89, 78,565.80 and 31,438.77

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Solution

The fourth proportional to 56,932.89, 78,565.80 and 31,438.77 is: 43,384.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,932.89 : 78,565.80 = 31,438.77 : x
  2. Step 2: Convert to fraction form
    56,932.89/78,565.80 = 31,438.77/x
  3. Step 3: Cross multiply
    56,932.89x = 78,565.80 × 31,438.77
  4. Step 4: Simplify right side
    56,932.89x = 2,470,012,381.27
  5. Step 5: Solve for x
    x = 2,470,012,381.27/56,932.89
  6. Step 6: Final answer
    x = 43,384.63

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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.