Home / 66,111.60-98,958.24-42,387.48

Finding the Fourth Proportional to 66,111.60, 98,958.24 and 42,387.48

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Solution

The fourth proportional to 66,111.60, 98,958.24 and 42,387.48 is: 63,447.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,111.60 : 98,958.24 = 42,387.48 : x
  2. Step 2: Convert to fraction form
    66,111.60/98,958.24 = 42,387.48/x
  3. Step 3: Cross multiply
    66,111.60x = 98,958.24 × 42,387.48
  4. Step 4: Simplify right side
    66,111.60x = 4,194,590,418.84
  5. Step 5: Solve for x
    x = 4,194,590,418.84/66,111.60
  6. Step 6: Final answer
    x = 63,447.12

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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.