Home / 90,410.12-135,524.80-42,941.68

Finding the Fourth Proportional to 90,410.12, 135,524.80 and 42,941.68

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Solution

The fourth proportional to 90,410.12, 135,524.80 and 42,941.68 is: 64,369.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,410.12 : 135,524.80 = 42,941.68 : x
  2. Step 2: Convert to fraction form
    90,410.12/135,524.80 = 42,941.68/x
  3. Step 3: Cross multiply
    90,410.12x = 135,524.80 × 42,941.68
  4. Step 4: Simplify right side
    90,410.12x = 5,819,662,593.66
  5. Step 5: Solve for x
    x = 5,819,662,593.66/90,410.12
  6. Step 6: Final answer
    x = 64,369.59

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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.