Home / 51,909.04-71,668.68-39,951.28

Finding the Fourth Proportional to 51,909.04, 71,668.68 and 39,951.28

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Solution

The fourth proportional to 51,909.04, 71,668.68 and 39,951.28 is: 55,159.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,909.04 : 71,668.68 = 39,951.28 : x
  2. Step 2: Convert to fraction form
    51,909.04/71,668.68 = 39,951.28/x
  3. Step 3: Cross multiply
    51,909.04x = 71,668.68 × 39,951.28
  4. Step 4: Simplify right side
    51,909.04x = 2,863,255,501.91
  5. Step 5: Solve for x
    x = 2,863,255,501.91/51,909.04
  6. Step 6: Final answer
    x = 55,159.09

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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.