Home / 91,994.48-138,166.80-57,177.44

Finding the Fourth Proportional to 91,994.48, 138,166.80 and 57,177.44

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Solution

The fourth proportional to 91,994.48, 138,166.80 and 57,177.44 is: 85,874.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,994.48 : 138,166.80 = 57,177.44 : x
  2. Step 2: Convert to fraction form
    91,994.48/138,166.80 = 57,177.44/x
  3. Step 3: Cross multiply
    91,994.48x = 138,166.80 × 57,177.44
  4. Step 4: Simplify right side
    91,994.48x = 7,900,023,916.99
  5. Step 5: Solve for x
    x = 7,900,023,916.99/91,994.48
  6. Step 6: Final answer
    x = 85,874.98

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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.