Home / 91,815.24-126,657.81-61,240.98

Finding the Fourth Proportional to 91,815.24, 126,657.81 and 61,240.98

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Solution

The fourth proportional to 91,815.24, 126,657.81 and 61,240.98 is: 84,481.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,815.24 : 126,657.81 = 61,240.98 : x
  2. Step 2: Convert to fraction form
    91,815.24/126,657.81 = 61,240.98/x
  3. Step 3: Cross multiply
    91,815.24x = 126,657.81 × 61,240.98
  4. Step 4: Simplify right side
    91,815.24x = 7,756,648,409.05
  5. Step 5: Solve for x
    x = 7,756,648,409.05/91,815.24
  6. Step 6: Final answer
    x = 84,481.06

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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.