Home / 91,961.36-137,867.59-28,748.93

Finding the Fourth Proportional to 91,961.36, 137,867.59 and 28,748.93

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Solution

The fourth proportional to 91,961.36, 137,867.59 and 28,748.93 is: 43,100.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,961.36 : 137,867.59 = 28,748.93 : x
  2. Step 2: Convert to fraction form
    91,961.36/137,867.59 = 28,748.93/x
  3. Step 3: Cross multiply
    91,961.36x = 137,867.59 × 28,748.93
  4. Step 4: Simplify right side
    91,961.36x = 3,963,545,550.43
  5. Step 5: Solve for x
    x = 3,963,545,550.43/91,961.36
  6. Step 6: Final answer
    x = 43,100.12

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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.