Home / 91,381.60-126,133.42-53,150.14

Finding the Fourth Proportional to 91,381.60, 126,133.42 and 53,150.14

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Solution

The fourth proportional to 91,381.60, 126,133.42 and 53,150.14 is: 73,362.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,381.60 : 126,133.42 = 53,150.14 : x
  2. Step 2: Convert to fraction form
    91,381.60/126,133.42 = 53,150.14/x
  3. Step 3: Cross multiply
    91,381.60x = 126,133.42 × 53,150.14
  4. Step 4: Simplify right side
    91,381.60x = 6,704,008,301.01
  5. Step 5: Solve for x
    x = 6,704,008,301.01/91,381.60
  6. Step 6: Final answer
    x = 73,362.78

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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.