Home / 56,872.91-78,468.85-36,730.64

Finding the Fourth Proportional to 56,872.91, 78,468.85 and 36,730.64

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Solution

The fourth proportional to 56,872.91, 78,468.85 and 36,730.64 is: 50,678.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,872.91 : 78,468.85 = 36,730.64 : x
  2. Step 2: Convert to fraction form
    56,872.91/78,468.85 = 36,730.64/x
  3. Step 3: Cross multiply
    56,872.91x = 78,468.85 × 36,730.64
  4. Step 4: Simplify right side
    56,872.91x = 2,882,211,080.56
  5. Step 5: Solve for x
    x = 2,882,211,080.56/56,872.91
  6. Step 6: Final answer
    x = 50,678.10

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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.