Home / 90,025.17-135,044.49-26,840.45

Finding the Fourth Proportional to 90,025.17, 135,044.49 and 26,840.45

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Solution

The fourth proportional to 90,025.17, 135,044.49 and 26,840.45 is: 40,262.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,025.17 : 135,044.49 = 26,840.45 : x
  2. Step 2: Convert to fraction form
    90,025.17/135,044.49 = 26,840.45/x
  3. Step 3: Cross multiply
    90,025.17x = 135,044.49 × 26,840.45
  4. Step 4: Simplify right side
    90,025.17x = 3,624,654,206.40
  5. Step 5: Solve for x
    x = 3,624,654,206.40/90,025.17
  6. Step 6: Final answer
    x = 40,262.68

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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.