Home / 91,380.69-136,966.08-57,201.82

Finding the Fourth Proportional to 91,380.69, 136,966.08 and 57,201.82

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Solution

The fourth proportional to 91,380.69, 136,966.08 and 57,201.82 is: 85,737.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,380.69 : 136,966.08 = 57,201.82 : x
  2. Step 2: Convert to fraction form
    91,380.69/136,966.08 = 57,201.82/x
  3. Step 3: Cross multiply
    91,380.69x = 136,966.08 × 57,201.82
  4. Step 4: Simplify right side
    91,380.69x = 7,834,708,768.26
  5. Step 5: Solve for x
    x = 7,834,708,768.26/91,380.69
  6. Step 6: Final answer
    x = 85,737.03

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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.