Home / 52,479.24-78,735.87-31,416

Finding the Fourth Proportional to 52,479.24, 78,735.87 and 31,416

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Solution

The fourth proportional to 52,479.24, 78,735.87 and 31,416 is: 47,134.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,479.24 : 78,735.87 = 31,416 : x
  2. Step 2: Convert to fraction form
    52,479.24/78,735.87 = 31,416/x
  3. Step 3: Cross multiply
    52,479.24x = 78,735.87 × 31,416
  4. Step 4: Simplify right side
    52,479.24x = 2,473,566,091.92
  5. Step 5: Solve for x
    x = 2,473,566,091.92/52,479.24
  6. Step 6: Final answer
    x = 47,134.18

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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.