Home / 66,267.40-91,442.19-39,404.72

Finding the Fourth Proportional to 66,267.40, 91,442.19 and 39,404.72

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Solution

The fourth proportional to 66,267.40, 91,442.19 and 39,404.72 is: 54,374.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,267.40 : 91,442.19 = 39,404.72 : x
  2. Step 2: Convert to fraction form
    66,267.40/91,442.19 = 39,404.72/x
  3. Step 3: Cross multiply
    66,267.40x = 91,442.19 × 39,404.72
  4. Step 4: Simplify right side
    66,267.40x = 3,603,253,893.14
  5. Step 5: Solve for x
    x = 3,603,253,893.14/66,267.40
  6. Step 6: Final answer
    x = 54,374.46

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1.5x scale

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.