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Finding the Fourth Proportional to 56,975.92, 78,642.08 and 32,779.65

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Solution

The fourth proportional to 56,975.92, 78,642.08 and 32,779.65 is: 45,244.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,975.92 : 78,642.08 = 32,779.65 : x
  2. Step 2: Convert to fraction form
    56,975.92/78,642.08 = 32,779.65/x
  3. Step 3: Cross multiply
    56,975.92x = 78,642.08 × 32,779.65
  4. Step 4: Simplify right side
    56,975.92x = 2,577,859,857.67
  5. Step 5: Solve for x
    x = 2,577,859,857.67/56,975.92
  6. Step 6: Final answer
    x = 45,244.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.