Home / 88,575.56-122,268.40-64,890.36

Finding the Fourth Proportional to 88,575.56, 122,268.40 and 64,890.36

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Solution

The fourth proportional to 88,575.56, 122,268.40 and 64,890.36 is: 89,573.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,575.56 : 122,268.40 = 64,890.36 : x
  2. Step 2: Convert to fraction form
    88,575.56/122,268.40 = 64,890.36/x
  3. Step 3: Cross multiply
    88,575.56x = 122,268.40 × 64,890.36
  4. Step 4: Simplify right side
    88,575.56x = 7,934,040,492.62
  5. Step 5: Solve for x
    x = 7,934,040,492.62/88,575.56
  6. Step 6: Final answer
    x = 89,573.70

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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.