Home / 88,011.12-121,453.76-49,770.08

Finding the Fourth Proportional to 88,011.12, 121,453.76 and 49,770.08

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Solution

The fourth proportional to 88,011.12, 121,453.76 and 49,770.08 is: 68,681.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,011.12 : 121,453.76 = 49,770.08 : x
  2. Step 2: Convert to fraction form
    88,011.12/121,453.76 = 49,770.08/x
  3. Step 3: Cross multiply
    88,011.12x = 121,453.76 × 49,770.08
  4. Step 4: Simplify right side
    88,011.12x = 6,044,763,351.50
  5. Step 5: Solve for x
    x = 6,044,763,351.50/88,011.12
  6. Step 6: Final answer
    x = 68,681.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.