Home / 90,635.34-135,920.58-34,460.49

Finding the Fourth Proportional to 90,635.34, 135,920.58 and 34,460.49

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Solution

The fourth proportional to 90,635.34, 135,920.58 and 34,460.49 is: 51,678.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,635.34 : 135,920.58 = 34,460.49 : x
  2. Step 2: Convert to fraction form
    90,635.34/135,920.58 = 34,460.49/x
  3. Step 3: Cross multiply
    90,635.34x = 135,920.58 × 34,460.49
  4. Step 4: Simplify right side
    90,635.34x = 4,683,889,787.88
  5. Step 5: Solve for x
    x = 4,683,889,787.88/90,635.34
  6. Step 6: Final answer
    x = 51,678.40

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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.