Home / 85,287.42-117,697.17-47,564.10

Finding the Fourth Proportional to 85,287.42, 117,697.17 and 47,564.10

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Solution

The fourth proportional to 85,287.42, 117,697.17 and 47,564.10 is: 65,638.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,287.42 : 117,697.17 = 47,564.10 : x
  2. Step 2: Convert to fraction form
    85,287.42/117,697.17 = 47,564.10/x
  3. Step 3: Cross multiply
    85,287.42x = 117,697.17 × 47,564.10
  4. Step 4: Simplify right side
    85,287.42x = 5,598,159,963.60
  5. Step 5: Solve for x
    x = 5,598,159,963.60/85,287.42
  6. Step 6: Final answer
    x = 65,638.75

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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.