Home / 90,870.94-136,327.97-28,541.44

Finding the Fourth Proportional to 90,870.94, 136,327.97 and 28,541.44

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Solution

The fourth proportional to 90,870.94, 136,327.97 and 28,541.44 is: 42,818.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,870.94 : 136,327.97 = 28,541.44 : x
  2. Step 2: Convert to fraction form
    90,870.94/136,327.97 = 28,541.44/x
  3. Step 3: Cross multiply
    90,870.94x = 136,327.97 × 28,541.44
  4. Step 4: Simplify right side
    90,870.94x = 3,890,996,576.08
  5. Step 5: Solve for x
    x = 3,890,996,576.08/90,870.94
  6. Step 6: Final answer
    x = 42,818.93

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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.