Home / 56,521.20-84,823.92-21,529.20

Finding the Fourth Proportional to 56,521.20, 84,823.92 and 21,529.20

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Solution

The fourth proportional to 56,521.20, 84,823.92 and 21,529.20 is: 32,309.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,521.20 : 84,823.92 = 21,529.20 : x
  2. Step 2: Convert to fraction form
    56,521.20/84,823.92 = 21,529.20/x
  3. Step 3: Cross multiply
    56,521.20x = 84,823.92 × 21,529.20
  4. Step 4: Simplify right side
    56,521.20x = 1,826,191,138.46
  5. Step 5: Solve for x
    x = 1,826,191,138.46/56,521.20
  6. Step 6: Final answer
    x = 32,309.84

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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.