Home / 91,053.14-136,579.72-28,728.50

Finding the Fourth Proportional to 91,053.14, 136,579.72 and 28,728.50

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Solution

The fourth proportional to 91,053.14, 136,579.72 and 28,728.50 is: 43,092.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,053.14 : 136,579.72 = 28,728.50 : x
  2. Step 2: Convert to fraction form
    91,053.14/136,579.72 = 28,728.50/x
  3. Step 3: Cross multiply
    91,053.14x = 136,579.72 × 28,728.50
  4. Step 4: Simplify right side
    91,053.14x = 3,923,730,486.02
  5. Step 5: Solve for x
    x = 3,923,730,486.02/91,053.14
  6. Step 6: Final answer
    x = 43,092.75

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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.