Home / 66,114.96-99,138.24-26,661.36

Finding the Fourth Proportional to 66,114.96, 99,138.24 and 26,661.36

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Solution

The fourth proportional to 66,114.96, 99,138.24 and 26,661.36 is: 39,978.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,114.96 : 99,138.24 = 26,661.36 : x
  2. Step 2: Convert to fraction form
    66,114.96/99,138.24 = 26,661.36/x
  3. Step 3: Cross multiply
    66,114.96x = 99,138.24 × 26,661.36
  4. Step 4: Simplify right side
    66,114.96x = 2,643,160,306.41
  5. Step 5: Solve for x
    x = 2,643,160,306.41/66,114.96
  6. Step 6: Final answer
    x = 39,978.25

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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.