Home / 90,267.70-135,186.63-52,236.79

Finding the Fourth Proportional to 90,267.70, 135,186.63 and 52,236.79

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Solution

The fourth proportional to 90,267.70, 135,186.63 and 52,236.79 is: 78,230.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,267.70 : 135,186.63 = 52,236.79 : x
  2. Step 2: Convert to fraction form
    90,267.70/135,186.63 = 52,236.79/x
  3. Step 3: Cross multiply
    90,267.70x = 135,186.63 × 52,236.79
  4. Step 4: Simplify right side
    90,267.70x = 7,061,715,828.69
  5. Step 5: Solve for x
    x = 7,061,715,828.69/90,267.70
  6. Step 6: Final answer
    x = 78,230.82

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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.