Home / 65,456.84-90,333.96-38,615.06

Finding the Fourth Proportional to 65,456.84, 90,333.96 and 38,615.06

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Solution

The fourth proportional to 65,456.84, 90,333.96 and 38,615.06 is: 53,290.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,456.84 : 90,333.96 = 38,615.06 : x
  2. Step 2: Convert to fraction form
    65,456.84/90,333.96 = 38,615.06/x
  3. Step 3: Cross multiply
    65,456.84x = 90,333.96 × 38,615.06
  4. Step 4: Simplify right side
    65,456.84x = 3,488,251,285.44
  5. Step 5: Solve for x
    x = 3,488,251,285.44/65,456.84
  6. Step 6: Final answer
    x = 53,290.86

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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.