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Finding the Fourth Proportional to 56,752.65, 85,099.82 and 30,479.49

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Solution

The fourth proportional to 56,752.65, 85,099.82 and 30,479.49 is: 45,703.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,752.65 : 85,099.82 = 30,479.49 : x
  2. Step 2: Convert to fraction form
    56,752.65/85,099.82 = 30,479.49/x
  3. Step 3: Cross multiply
    56,752.65x = 85,099.82 × 30,479.49
  4. Step 4: Simplify right side
    56,752.65x = 2,593,798,960.29
  5. Step 5: Solve for x
    x = 2,593,798,960.29/56,752.65
  6. Step 6: Final answer
    x = 45,703.57

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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.