Home / 66,427.13-91,617.60-42,556.03

Finding the Fourth Proportional to 66,427.13, 91,617.60 and 42,556.03

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Solution

The fourth proportional to 66,427.13, 91,617.60 and 42,556.03 is: 58,694.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,427.13 : 91,617.60 = 42,556.03 : x
  2. Step 2: Convert to fraction form
    66,427.13/91,617.60 = 42,556.03/x
  3. Step 3: Cross multiply
    66,427.13x = 91,617.60 × 42,556.03
  4. Step 4: Simplify right side
    66,427.13x = 3,898,880,876.04
  5. Step 5: Solve for x
    x = 3,898,880,876.04/66,427.13
  6. Step 6: Final answer
    x = 58,694.10

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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.