Home / 78,433.42-117,668.59-25,842.91

Finding the Fourth Proportional to 78,433.42, 117,668.59 and 25,842.91

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Solution

The fourth proportional to 78,433.42, 117,668.59 and 25,842.91 is: 38,770.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,433.42 : 117,668.59 = 25,842.91 : x
  2. Step 2: Convert to fraction form
    78,433.42/117,668.59 = 25,842.91/x
  3. Step 3: Cross multiply
    78,433.42x = 117,668.59 × 25,842.91
  4. Step 4: Simplify right side
    78,433.42x = 3,040,898,781.20
  5. Step 5: Solve for x
    x = 3,040,898,781.20/78,433.42
  6. Step 6: Final answer
    x = 38,770.45

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1.5x scale

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.