Home / 91,866.04-126,742.38-57,877.60

Finding the Fourth Proportional to 91,866.04, 126,742.38 and 57,877.60

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Solution

The fourth proportional to 91,866.04, 126,742.38 and 57,877.60 is: 79,850.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,866.04 : 126,742.38 = 57,877.60 : x
  2. Step 2: Convert to fraction form
    91,866.04/126,742.38 = 57,877.60/x
  3. Step 3: Cross multiply
    91,866.04x = 126,742.38 × 57,877.60
  4. Step 4: Simplify right side
    91,866.04x = 7,335,544,772.69
  5. Step 5: Solve for x
    x = 7,335,544,772.69/91,866.04
  6. Step 6: Final answer
    x = 79,850.45

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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.