Home / 91,291.30-136,988.52-49,170.49

Finding the Fourth Proportional to 91,291.30, 136,988.52 and 49,170.49

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Solution

The fourth proportional to 91,291.30, 136,988.52 and 49,170.49 is: 73,783.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,291.30 : 136,988.52 = 49,170.49 : x
  2. Step 2: Convert to fraction form
    91,291.30/136,988.52 = 49,170.49/x
  3. Step 3: Cross multiply
    91,291.30x = 136,988.52 × 49,170.49
  4. Step 4: Simplify right side
    91,291.30x = 6,735,792,652.77
  5. Step 5: Solve for x
    x = 6,735,792,652.77/91,291.30
  6. Step 6: Final answer
    x = 73,783.51

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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.