Home / 91,571.07-137,355.27-55,556.11

Finding the Fourth Proportional to 91,571.07, 137,355.27 and 55,556.11

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Solution

The fourth proportional to 91,571.07, 137,355.27 and 55,556.11 is: 83,333.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,571.07 : 137,355.27 = 55,556.11 : x
  2. Step 2: Convert to fraction form
    91,571.07/137,355.27 = 55,556.11/x
  3. Step 3: Cross multiply
    91,571.07x = 137,355.27 × 55,556.11
  4. Step 4: Simplify right side
    91,571.07x = 7,630,924,489.20
  5. Step 5: Solve for x
    x = 7,630,924,489.20/91,571.07
  6. Step 6: Final answer
    x = 83,333.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.