Home / 55,721.48-76,895.04-30,570.96

Finding the Fourth Proportional to 55,721.48, 76,895.04 and 30,570.96

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Solution

The fourth proportional to 55,721.48, 76,895.04 and 30,570.96 is: 42,187.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,721.48 : 76,895.04 = 30,570.96 : x
  2. Step 2: Convert to fraction form
    55,721.48/76,895.04 = 30,570.96/x
  3. Step 3: Cross multiply
    55,721.48x = 76,895.04 × 30,570.96
  4. Step 4: Simplify right side
    55,721.48x = 2,350,755,192.04
  5. Step 5: Solve for x
    x = 2,350,755,192.04/55,721.48
  6. Step 6: Final answer
    x = 42,187.59

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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.