Home / 91,816.59-137,429.63-47,382.83

Finding the Fourth Proportional to 91,816.59, 137,429.63 and 47,382.83

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Solution

The fourth proportional to 91,816.59, 137,429.63 and 47,382.83 is: 70,921.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,816.59 : 137,429.63 = 47,382.83 : x
  2. Step 2: Convert to fraction form
    91,816.59/137,429.63 = 47,382.83/x
  3. Step 3: Cross multiply
    91,816.59x = 137,429.63 × 47,382.83
  4. Step 4: Simplify right side
    91,816.59x = 6,511,803,871.19
  5. Step 5: Solve for x
    x = 6,511,803,871.19/91,816.59
  6. Step 6: Final answer
    x = 70,921.87

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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.