Home / 90,212.07-135,212.00-36,871.14

Finding the Fourth Proportional to 90,212.07, 135,212.00 and 36,871.14

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Solution

The fourth proportional to 90,212.07, 135,212.00 and 36,871.14 is: 55,263.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,212.07 : 135,212.00 = 36,871.14 : x
  2. Step 2: Convert to fraction form
    90,212.07/135,212.00 = 36,871.14/x
  3. Step 3: Cross multiply
    90,212.07x = 135,212.00 × 36,871.14
  4. Step 4: Simplify right side
    90,212.07x = 4,985,420,397.32
  5. Step 5: Solve for x
    x = 4,985,420,397.32/90,212.07
  6. Step 6: Final answer
    x = 55,263.34

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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.