Home / 91,068.16-125,683.02-55,255.36

Finding the Fourth Proportional to 91,068.16, 125,683.02 and 55,255.36

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Solution

The fourth proportional to 91,068.16, 125,683.02 and 55,255.36 is: 76,257.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,068.16 : 125,683.02 = 55,255.36 : x
  2. Step 2: Convert to fraction form
    91,068.16/125,683.02 = 55,255.36/x
  3. Step 3: Cross multiply
    91,068.16x = 125,683.02 × 55,255.36
  4. Step 4: Simplify right side
    91,068.16x = 6,944,660,515.99
  5. Step 5: Solve for x
    x = 6,944,660,515.99/91,068.16
  6. Step 6: Final answer
    x = 76,257.83

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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.