Home / 91,742.22-126,432.81-71,567.10

Finding the Fourth Proportional to 91,742.22, 126,432.81 and 71,567.10

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Solution

The fourth proportional to 91,742.22, 126,432.81 and 71,567.10 is: 98,628.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,742.22 : 126,432.81 = 71,567.10 : x
  2. Step 2: Convert to fraction form
    91,742.22/126,432.81 = 71,567.10/x
  3. Step 3: Cross multiply
    91,742.22x = 126,432.81 × 71,567.10
  4. Step 4: Simplify right side
    91,742.22x = 9,048,429,556.55
  5. Step 5: Solve for x
    x = 9,048,429,556.55/91,742.22
  6. Step 6: Final answer
    x = 98,628.85

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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.