Home / 90,312.45-135,470.04-34,179

Finding the Fourth Proportional to 90,312.45, 135,470.04 and 34,179

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Solution

The fourth proportional to 90,312.45, 135,470.04 and 34,179 is: 51,269.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,312.45 : 135,470.04 = 34,179 : x
  2. Step 2: Convert to fraction form
    90,312.45/135,470.04 = 34,179/x
  3. Step 3: Cross multiply
    90,312.45x = 135,470.04 × 34,179
  4. Step 4: Simplify right side
    90,312.45x = 4,630,230,497.16
  5. Step 5: Solve for x
    x = 4,630,230,497.16/90,312.45
  6. Step 6: Final answer
    x = 51,269.02

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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.