Home / 80,829.93-111,548.76-45,019.95

Finding the Fourth Proportional to 80,829.93, 111,548.76 and 45,019.95

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Solution

The fourth proportional to 80,829.93, 111,548.76 and 45,019.95 is: 62,129.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,829.93 : 111,548.76 = 45,019.95 : x
  2. Step 2: Convert to fraction form
    80,829.93/111,548.76 = 45,019.95/x
  3. Step 3: Cross multiply
    80,829.93x = 111,548.76 × 45,019.95
  4. Step 4: Simplify right side
    80,829.93x = 5,021,919,597.76
  5. Step 5: Solve for x
    x = 5,021,919,597.76/80,829.93
  6. Step 6: Final answer
    x = 62,129.46

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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.