Home / 65,818.40-98,742.96-19,072.16

Finding the Fourth Proportional to 65,818.40, 98,742.96 and 19,072.16

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Solution

The fourth proportional to 65,818.40, 98,742.96 and 19,072.16 is: 28,612.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,818.40 : 98,742.96 = 19,072.16 : x
  2. Step 2: Convert to fraction form
    65,818.40/98,742.96 = 19,072.16/x
  3. Step 3: Cross multiply
    65,818.40x = 98,742.96 × 19,072.16
  4. Step 4: Simplify right side
    65,818.40x = 1,883,241,531.99
  5. Step 5: Solve for x
    x = 1,883,241,531.99/65,818.40
  6. Step 6: Final answer
    x = 28,612.69

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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.