Home / 91,134.28-136,700.60-28,804.80

Finding the Fourth Proportional to 91,134.28, 136,700.60 and 28,804.80

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Solution

The fourth proportional to 91,134.28, 136,700.60 and 28,804.80 is: 43,206.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,134.28 : 136,700.60 = 28,804.80 : x
  2. Step 2: Convert to fraction form
    91,134.28/136,700.60 = 28,804.80/x
  3. Step 3: Cross multiply
    91,134.28x = 136,700.60 × 28,804.80
  4. Step 4: Simplify right side
    91,134.28x = 3,937,633,442.88
  5. Step 5: Solve for x
    x = 3,937,633,442.88/91,134.28
  6. Step 6: Final answer
    x = 43,206.94

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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.