Home / 66,351.44-99,280.50-39,710.74

Finding the Fourth Proportional to 66,351.44, 99,280.50 and 39,710.74

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Solution

The fourth proportional to 66,351.44, 99,280.50 and 39,710.74 is: 59,418.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,351.44 : 99,280.50 = 39,710.74 : x
  2. Step 2: Convert to fraction form
    66,351.44/99,280.50 = 39,710.74/x
  3. Step 3: Cross multiply
    66,351.44x = 99,280.50 × 39,710.74
  4. Step 4: Simplify right side
    66,351.44x = 3,942,502,122.57
  5. Step 5: Solve for x
    x = 3,942,502,122.57/66,351.44
  6. Step 6: Final answer
    x = 59,418.49

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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.