Home / 90,333.34-135,498.78-28,003.84

Finding the Fourth Proportional to 90,333.34, 135,498.78 and 28,003.84

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Solution

The fourth proportional to 90,333.34, 135,498.78 and 28,003.84 is: 42,005.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,333.34 : 135,498.78 = 28,003.84 : x
  2. Step 2: Convert to fraction form
    90,333.34/135,498.78 = 28,003.84/x
  3. Step 3: Cross multiply
    90,333.34x = 135,498.78 × 28,003.84
  4. Step 4: Simplify right side
    90,333.34x = 3,794,486,155.32
  5. Step 5: Solve for x
    x = 3,794,486,155.32/90,333.34
  6. Step 6: Final answer
    x = 42,005.38

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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.