Home / 55,721.20-83,585.72-22,441.40

Finding the Fourth Proportional to 55,721.20, 83,585.72 and 22,441.40

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Solution

The fourth proportional to 55,721.20, 83,585.72 and 22,441.40 is: 33,663.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,721.20 : 83,585.72 = 22,441.40 : x
  2. Step 2: Convert to fraction form
    55,721.20/83,585.72 = 22,441.40/x
  3. Step 3: Cross multiply
    55,721.20x = 83,585.72 × 22,441.40
  4. Step 4: Simplify right side
    55,721.20x = 1,875,780,576.81
  5. Step 5: Solve for x
    x = 1,875,780,576.81/55,721.20
  6. Step 6: Final answer
    x = 33,663.68

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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.