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Finding the Fourth Proportional to 65,279.63, 90,086.00 and 36,987.23

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Solution

The fourth proportional to 65,279.63, 90,086.00 and 36,987.23 is: 51,042.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,279.63 : 90,086.00 = 36,987.23 : x
  2. Step 2: Convert to fraction form
    65,279.63/90,086.00 = 36,987.23/x
  3. Step 3: Cross multiply
    65,279.63x = 90,086.00 × 36,987.23
  4. Step 4: Simplify right side
    65,279.63x = 3,332,030,966.41
  5. Step 5: Solve for x
    x = 3,332,030,966.41/65,279.63
  6. Step 6: Final answer
    x = 51,042.43

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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.