Home / 90,018.08-135,025.38-26,880.98

Finding the Fourth Proportional to 90,018.08, 135,025.38 and 26,880.98

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Solution

The fourth proportional to 90,018.08, 135,025.38 and 26,880.98 is: 40,320.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,018.08 : 135,025.38 = 26,880.98 : x
  2. Step 2: Convert to fraction form
    90,018.08/135,025.38 = 26,880.98/x
  3. Step 3: Cross multiply
    90,018.08x = 135,025.38 × 26,880.98
  4. Step 4: Simplify right side
    90,018.08x = 3,629,614,539.27
  5. Step 5: Solve for x
    x = 3,629,614,539.27/90,018.08
  6. Step 6: Final answer
    x = 40,320.95

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1.5x scale

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.