Home / 91,586.80-137,419.71-49,458.50

Finding the Fourth Proportional to 91,586.80, 137,419.71 and 49,458.50

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Solution

The fourth proportional to 91,586.80, 137,419.71 and 49,458.50 is: 74,209.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,586.80 : 137,419.71 = 49,458.50 : x
  2. Step 2: Convert to fraction form
    91,586.80/137,419.71 = 49,458.50/x
  3. Step 3: Cross multiply
    91,586.80x = 137,419.71 × 49,458.50
  4. Step 4: Simplify right side
    91,586.80x = 6,796,572,727.04
  5. Step 5: Solve for x
    x = 6,796,572,727.04/91,586.80
  6. Step 6: Final answer
    x = 74,209.09

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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.