Home / 90,415.13-135,604.16-34,235.86

Finding the Fourth Proportional to 90,415.13, 135,604.16 and 34,235.86

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Solution

The fourth proportional to 90,415.13, 135,604.16 and 34,235.86 is: 51,346.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,415.13 : 135,604.16 = 34,235.86 : x
  2. Step 2: Convert to fraction form
    90,415.13/135,604.16 = 34,235.86/x
  3. Step 3: Cross multiply
    90,415.13x = 135,604.16 × 34,235.86
  4. Step 4: Simplify right side
    90,415.13x = 4,642,524,783.76
  5. Step 5: Solve for x
    x = 4,642,524,783.76/90,415.13
  6. Step 6: Final answer
    x = 51,346.77

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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.