Home / 89,290.20-133,935.30-69,583.50

Finding the Fourth Proportional to 89,290.20, 133,935.30 and 69,583.50

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Solution

The fourth proportional to 89,290.20, 133,935.30 and 69,583.50 is: 104,375.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,290.20 : 133,935.30 = 69,583.50 : x
  2. Step 2: Convert to fraction form
    89,290.20/133,935.30 = 69,583.50/x
  3. Step 3: Cross multiply
    89,290.20x = 133,935.30 × 69,583.50
  4. Step 4: Simplify right side
    89,290.20x = 9,319,686,947.55
  5. Step 5: Solve for x
    x = 9,319,686,947.55/89,290.20
  6. Step 6: Final answer
    x = 104,375.25

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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.