Home / 91,596.02-126,356.09-57,112.43

Finding the Fourth Proportional to 91,596.02, 126,356.09 and 57,112.43

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Solution

The fourth proportional to 91,596.02, 126,356.09 and 57,112.43 is: 78,786.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,596.02 : 126,356.09 = 57,112.43 : x
  2. Step 2: Convert to fraction form
    91,596.02/126,356.09 = 57,112.43/x
  3. Step 3: Cross multiply
    91,596.02x = 126,356.09 × 57,112.43
  4. Step 4: Simplify right side
    91,596.02x = 7,216,502,427.86
  5. Step 5: Solve for x
    x = 7,216,502,427.86/91,596.02
  6. Step 6: Final answer
    x = 78,786.21

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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.