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Finding the Fourth Proportional to 65,714.80, 90,695.82 and 37,423.12

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Solution

The fourth proportional to 65,714.80, 90,695.82 and 37,423.12 is: 51,649.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,714.80 : 90,695.82 = 37,423.12 : x
  2. Step 2: Convert to fraction form
    65,714.80/90,695.82 = 37,423.12/x
  3. Step 3: Cross multiply
    65,714.80x = 90,695.82 × 37,423.12
  4. Step 4: Simplify right side
    65,714.80x = 3,394,120,555.36
  5. Step 5: Solve for x
    x = 3,394,120,555.36/65,714.80
  6. Step 6: Final answer
    x = 51,649.26

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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.