Home / 52,505.24-78,668.76-31,685

Finding the Fourth Proportional to 52,505.24, 78,668.76 and 31,685

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Solution

The fourth proportional to 52,505.24, 78,668.76 and 31,685 is: 47,473.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,505.24 : 78,668.76 = 31,685 : x
  2. Step 2: Convert to fraction form
    52,505.24/78,668.76 = 31,685/x
  3. Step 3: Cross multiply
    52,505.24x = 78,668.76 × 31,685
  4. Step 4: Simplify right side
    52,505.24x = 2,492,619,660.60
  5. Step 5: Solve for x
    x = 2,492,619,660.60/52,505.24
  6. Step 6: Final answer
    x = 47,473.73

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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.