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Finding the Fourth Proportional to 65,878.71, 98,818.20 and 30,842.97

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Solution

The fourth proportional to 65,878.71, 98,818.20 and 30,842.97 is: 46,264.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,878.71 : 98,818.20 = 30,842.97 : x
  2. Step 2: Convert to fraction form
    65,878.71/98,818.20 = 30,842.97/x
  3. Step 3: Cross multiply
    65,878.71x = 98,818.20 × 30,842.97
  4. Step 4: Simplify right side
    65,878.71x = 3,047,846,778.05
  5. Step 5: Solve for x
    x = 3,047,846,778.05/65,878.71
  6. Step 6: Final answer
    x = 46,264.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.