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Finding the Fourth Proportional to 91,878.93, 126,804.15 and 51,594.39

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Solution

The fourth proportional to 91,878.93, 126,804.15 and 51,594.39 is: 71,206.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,878.93 : 126,804.15 = 51,594.39 : x
  2. Step 2: Convert to fraction form
    91,878.93/126,804.15 = 51,594.39/x
  3. Step 3: Cross multiply
    91,878.93x = 126,804.15 × 51,594.39
  4. Step 4: Simplify right side
    91,878.93x = 6,542,382,768.72
  5. Step 5: Solve for x
    x = 6,542,382,768.72/91,878.93
  6. Step 6: Final answer
    x = 71,206.56

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1.5x scale

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.