Home / 90,341.04-135,519.90-23,781.52

Finding the Fourth Proportional to 90,341.04, 135,519.90 and 23,781.52

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Solution

The fourth proportional to 90,341.04, 135,519.90 and 23,781.52 is: 35,674.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,341.04 : 135,519.90 = 23,781.52 : x
  2. Step 2: Convert to fraction form
    90,341.04/135,519.90 = 23,781.52/x
  3. Step 3: Cross multiply
    90,341.04x = 135,519.90 × 23,781.52
  4. Step 4: Simplify right side
    90,341.04x = 3,222,869,212.25
  5. Step 5: Solve for x
    x = 3,222,869,212.25/90,341.04
  6. Step 6: Final answer
    x = 35,674.48

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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.