Home / 90,600.72-135,901.80-28,273.20

Finding the Fourth Proportional to 90,600.72, 135,901.80 and 28,273.20

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Solution

The fourth proportional to 90,600.72, 135,901.80 and 28,273.20 is: 42,410.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,600.72 : 135,901.80 = 28,273.20 : x
  2. Step 2: Convert to fraction form
    90,600.72/135,901.80 = 28,273.20/x
  3. Step 3: Cross multiply
    90,600.72x = 135,901.80 × 28,273.20
  4. Step 4: Simplify right side
    90,600.72x = 3,842,378,771.76
  5. Step 5: Solve for x
    x = 3,842,378,771.76/90,600.72
  6. Step 6: Final answer
    x = 42,410.02

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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.