Home / 56,689.20-85,011.84-19,242.96

Finding the Fourth Proportional to 56,689.20, 85,011.84 and 19,242.96

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Solution

The fourth proportional to 56,689.20, 85,011.84 and 19,242.96 is: 28,856.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,689.20 : 85,011.84 = 19,242.96 : x
  2. Step 2: Convert to fraction form
    56,689.20/85,011.84 = 19,242.96/x
  3. Step 3: Cross multiply
    56,689.20x = 85,011.84 × 19,242.96
  4. Step 4: Simplify right side
    56,689.20x = 1,635,879,436.65
  5. Step 5: Solve for x
    x = 1,635,879,436.65/56,689.20
  6. Step 6: Final answer
    x = 28,856.99

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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.