Home / 85,564.98-118,080-47,839.14

Finding the Fourth Proportional to 85,564.98, 118,080 and 47,839.14

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Solution

The fourth proportional to 85,564.98, 118,080 and 47,839.14 is: 66,018.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,564.98 : 118,080 = 47,839.14 : x
  2. Step 2: Convert to fraction form
    85,564.98/118,080 = 47,839.14/x
  3. Step 3: Cross multiply
    85,564.98x = 118,080 × 47,839.14
  4. Step 4: Simplify right side
    85,564.98x = 5,648,845,651.20
  5. Step 5: Solve for x
    x = 5,648,845,651.20/85,564.98
  6. Step 6: Final answer
    x = 66,018.20

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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.