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Finding the Fourth Proportional to 64,976.30, 89,668.04 and 38,119.26

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Solution

The fourth proportional to 64,976.30, 89,668.04 and 38,119.26 is: 52,605.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,976.30 : 89,668.04 = 38,119.26 : x
  2. Step 2: Convert to fraction form
    64,976.30/89,668.04 = 38,119.26/x
  3. Step 3: Cross multiply
    64,976.30x = 89,668.04 × 38,119.26
  4. Step 4: Simplify right side
    64,976.30x = 3,418,079,139.85
  5. Step 5: Solve for x
    x = 3,418,079,139.85/64,976.30
  6. Step 6: Final answer
    x = 52,605.02

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1.5x scale

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.