Home / 90,360.08-135,550.12-31,189.04

Finding the Fourth Proportional to 90,360.08, 135,550.12 and 31,189.04

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Solution

The fourth proportional to 90,360.08, 135,550.12 and 31,189.04 is: 46,787.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,360.08 : 135,550.12 = 31,189.04 : x
  2. Step 2: Convert to fraction form
    90,360.08/135,550.12 = 31,189.04/x
  3. Step 3: Cross multiply
    90,360.08x = 135,550.12 × 31,189.04
  4. Step 4: Simplify right side
    90,360.08x = 4,227,678,114.68
  5. Step 5: Solve for x
    x = 4,227,678,114.68/90,360.08
  6. Step 6: Final answer
    x = 46,787.01

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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.