Home / 55,521.86-76,618.13-31,643.92

Finding the Fourth Proportional to 55,521.86, 76,618.13 and 31,643.92

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Solution

The fourth proportional to 55,521.86, 76,618.13 and 31,643.92 is: 43,667.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,521.86 : 76,618.13 = 31,643.92 : x
  2. Step 2: Convert to fraction form
    55,521.86/76,618.13 = 31,643.92/x
  3. Step 3: Cross multiply
    55,521.86x = 76,618.13 × 31,643.92
  4. Step 4: Simplify right side
    55,521.86x = 2,424,497,913.82
  5. Step 5: Solve for x
    x = 2,424,497,913.82/55,521.86
  6. Step 6: Final answer
    x = 43,667.45

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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.