Home / 55,957.29-77,221.04-30,806.79

Finding the Fourth Proportional to 55,957.29, 77,221.04 and 30,806.79

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Solution

The fourth proportional to 55,957.29, 77,221.04 and 30,806.79 is: 42,513.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,957.29 : 77,221.04 = 30,806.79 : x
  2. Step 2: Convert to fraction form
    55,957.29/77,221.04 = 30,806.79/x
  3. Step 3: Cross multiply
    55,957.29x = 77,221.04 × 30,806.79
  4. Step 4: Simplify right side
    55,957.29x = 2,378,932,362.86
  5. Step 5: Solve for x
    x = 2,378,932,362.86/55,957.29
  6. Step 6: Final answer
    x = 42,513.36

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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.