Home / 88,921.28-133,419.36-38,975.60

Finding the Fourth Proportional to 88,921.28, 133,419.36 and 38,975.60

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Solution

The fourth proportional to 88,921.28, 133,419.36 and 38,975.60 is: 58,479.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,921.28 : 133,419.36 = 38,975.60 : x
  2. Step 2: Convert to fraction form
    88,921.28/133,419.36 = 38,975.60/x
  3. Step 3: Cross multiply
    88,921.28x = 133,419.36 × 38,975.60
  4. Step 4: Simplify right side
    88,921.28x = 5,200,099,607.62
  5. Step 5: Solve for x
    x = 5,200,099,607.62/88,921.28
  6. Step 6: Final answer
    x = 58,479.81

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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.