Home / 55,871.02-83,859.19-20,366.65

Finding the Fourth Proportional to 55,871.02, 83,859.19 and 20,366.65

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Solution

The fourth proportional to 55,871.02, 83,859.19 and 20,366.65 is: 30,569.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,871.02 : 83,859.19 = 20,366.65 : x
  2. Step 2: Convert to fraction form
    55,871.02/83,859.19 = 20,366.65/x
  3. Step 3: Cross multiply
    55,871.02x = 83,859.19 × 20,366.65
  4. Step 4: Simplify right side
    55,871.02x = 1,707,930,647.35
  5. Step 5: Solve for x
    x = 1,707,930,647.35/55,871.02
  6. Step 6: Final answer
    x = 30,569.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.