Home / 91,566.62-137,389.40-49,438.34

Finding the Fourth Proportional to 91,566.62, 137,389.40 and 49,438.34

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Solution

The fourth proportional to 91,566.62, 137,389.40 and 49,438.34 is: 74,178.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,566.62 : 137,389.40 = 49,438.34 : x
  2. Step 2: Convert to fraction form
    91,566.62/137,389.40 = 49,438.34/x
  3. Step 3: Cross multiply
    91,566.62x = 137,389.40 × 49,438.34
  4. Step 4: Simplify right side
    91,566.62x = 6,792,303,869.60
  5. Step 5: Solve for x
    x = 6,792,303,869.60/91,566.62
  6. Step 6: Final answer
    x = 74,178.82

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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.