Home / 91,365.28-126,099.84-53,129.20

Finding the Fourth Proportional to 91,365.28, 126,099.84 and 53,129.20

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Solution

The fourth proportional to 91,365.28, 126,099.84 and 53,129.20 is: 73,327.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,365.28 : 126,099.84 = 53,129.20 : x
  2. Step 2: Convert to fraction form
    91,365.28/126,099.84 = 53,129.20/x
  3. Step 3: Cross multiply
    91,365.28x = 126,099.84 × 53,129.20
  4. Step 4: Simplify right side
    91,365.28x = 6,699,583,619.33
  5. Step 5: Solve for x
    x = 6,699,583,619.33/91,365.28
  6. Step 6: Final answer
    x = 73,327.46

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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.