Home / 81,638.44-112,659.39-45,337.97

Finding the Fourth Proportional to 81,638.44, 112,659.39 and 45,337.97

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Solution

The fourth proportional to 81,638.44, 112,659.39 and 45,337.97 is: 62,565.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,638.44 : 112,659.39 = 45,337.97 : x
  2. Step 2: Convert to fraction form
    81,638.44/112,659.39 = 45,337.97/x
  3. Step 3: Cross multiply
    81,638.44x = 112,659.39 × 45,337.97
  4. Step 4: Simplify right side
    81,638.44x = 5,107,748,325.69
  5. Step 5: Solve for x
    x = 5,107,748,325.69/81,638.44
  6. Step 6: Final answer
    x = 62,565.48

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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.