Home / 91,541.46-137,332.86-49,420.62

Finding the Fourth Proportional to 91,541.46, 137,332.86 and 49,420.62

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Solution

The fourth proportional to 91,541.46, 137,332.86 and 49,420.62 is: 74,142.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,541.46 : 137,332.86 = 49,420.62 : x
  2. Step 2: Convert to fraction form
    91,541.46/137,332.86 = 49,420.62/x
  3. Step 3: Cross multiply
    91,541.46x = 137,332.86 × 49,420.62
  4. Step 4: Simplify right side
    91,541.46x = 6,787,075,087.57
  5. Step 5: Solve for x
    x = 6,787,075,087.57/91,541.46
  6. Step 6: Final answer
    x = 74,142.09

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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.