Home / 56,012.28-84,011.76-20,942.52

Finding the Fourth Proportional to 56,012.28, 84,011.76 and 20,942.52

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Solution

The fourth proportional to 56,012.28, 84,011.76 and 20,942.52 is: 31,411.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,012.28 : 84,011.76 = 20,942.52 : x
  2. Step 2: Convert to fraction form
    56,012.28/84,011.76 = 20,942.52/x
  3. Step 3: Cross multiply
    56,012.28x = 84,011.76 × 20,942.52
  4. Step 4: Simplify right side
    56,012.28x = 1,759,417,964.04
  5. Step 5: Solve for x
    x = 1,759,417,964.04/56,012.28
  6. Step 6: Final answer
    x = 31,411.29

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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.