Home / 85,902.02-118,540.78-47,661.16

Finding the Fourth Proportional to 85,902.02, 118,540.78 and 47,661.16

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Solution

The fourth proportional to 85,902.02, 118,540.78 and 47,661.16 is: 65,770.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,902.02 : 118,540.78 = 47,661.16 : x
  2. Step 2: Convert to fraction form
    85,902.02/118,540.78 = 47,661.16/x
  3. Step 3: Cross multiply
    85,902.02x = 118,540.78 × 47,661.16
  4. Step 4: Simplify right side
    85,902.02x = 5,649,791,082.10
  5. Step 5: Solve for x
    x = 5,649,791,082.10/85,902.02
  6. Step 6: Final answer
    x = 65,770.18

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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.