Home / 91,827.27-137,740.68-51,828.12

Finding the Fourth Proportional to 91,827.27, 137,740.68 and 51,828.12

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Solution

The fourth proportional to 91,827.27, 137,740.68 and 51,828.12 is: 77,742.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,827.27 : 137,740.68 = 51,828.12 : x
  2. Step 2: Convert to fraction form
    91,827.27/137,740.68 = 51,828.12/x
  3. Step 3: Cross multiply
    91,827.27x = 137,740.68 × 51,828.12
  4. Step 4: Simplify right side
    91,827.27x = 7,138,840,491.92
  5. Step 5: Solve for x
    x = 7,138,840,491.92/91,827.27
  6. Step 6: Final answer
    x = 77,742.05

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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.