Home / 90,108.34-135,142.47-26,052.50

Finding the Fourth Proportional to 90,108.34, 135,142.47 and 26,052.50

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Solution

The fourth proportional to 90,108.34, 135,142.47 and 26,052.50 is: 39,072.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,108.34 : 135,142.47 = 26,052.50 : x
  2. Step 2: Convert to fraction form
    90,108.34/135,142.47 = 26,052.50/x
  3. Step 3: Cross multiply
    90,108.34x = 135,142.47 × 26,052.50
  4. Step 4: Simplify right side
    90,108.34x = 3,520,798,393.70
  5. Step 5: Solve for x
    x = 3,520,798,393.70/90,108.34
  6. Step 6: Final answer
    x = 39,072.95

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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.