Home / 91,388.72-126,122.46-55,580.24

Finding the Fourth Proportional to 91,388.72, 126,122.46 and 55,580.24

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Solution

The fourth proportional to 91,388.72, 126,122.46 and 55,580.24 is: 76,704.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,388.72 : 126,122.46 = 55,580.24 : x
  2. Step 2: Convert to fraction form
    91,388.72/126,122.46 = 55,580.24/x
  3. Step 3: Cross multiply
    91,388.72x = 126,122.46 × 55,580.24
  4. Step 4: Simplify right side
    91,388.72x = 7,009,916,596.19
  5. Step 5: Solve for x
    x = 7,009,916,596.19/91,388.72
  6. Step 6: Final answer
    x = 76,704.40

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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.