Home / 91,043.75-125,639.96-52,811.03

Finding the Fourth Proportional to 91,043.75, 125,639.96 and 52,811.03

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Solution

The fourth proportional to 91,043.75, 125,639.96 and 52,811.03 is: 72,878.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,043.75 : 125,639.96 = 52,811.03 : x
  2. Step 2: Convert to fraction form
    91,043.75/125,639.96 = 52,811.03/x
  3. Step 3: Cross multiply
    91,043.75x = 125,639.96 × 52,811.03
  4. Step 4: Simplify right side
    91,043.75x = 6,635,174,804.50
  5. Step 5: Solve for x
    x = 6,635,174,804.50/91,043.75
  6. Step 6: Final answer
    x = 72,878.97

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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.