Home / 90,033.70-135,066.99-30,875.35

Finding the Fourth Proportional to 90,033.70, 135,066.99 and 30,875.35

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Solution

The fourth proportional to 90,033.70, 135,066.99 and 30,875.35 is: 46,318.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,033.70 : 135,066.99 = 30,875.35 : x
  2. Step 2: Convert to fraction form
    90,033.70/135,066.99 = 30,875.35/x
  3. Step 3: Cross multiply
    90,033.70x = 135,066.99 × 30,875.35
  4. Step 4: Simplify right side
    90,033.70x = 4,170,240,589.70
  5. Step 5: Solve for x
    x = 4,170,240,589.70/90,033.70
  6. Step 6: Final answer
    x = 46,318.66

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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.