Home / 91,280.40-136,942.56-28,950.84

Finding the Fourth Proportional to 91,280.40, 136,942.56 and 28,950.84

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Solution

The fourth proportional to 91,280.40, 136,942.56 and 28,950.84 is: 43,433.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,280.40 : 136,942.56 = 28,950.84 : x
  2. Step 2: Convert to fraction form
    91,280.40/136,942.56 = 28,950.84/x
  3. Step 3: Cross multiply
    91,280.40x = 136,942.56 × 28,950.84
  4. Step 4: Simplify right side
    91,280.40x = 3,964,602,143.75
  5. Step 5: Solve for x
    x = 3,964,602,143.75/91,280.40
  6. Step 6: Final answer
    x = 43,433.22

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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.