Home / 91,749.41-126,619.31-69,047.63

Finding the Fourth Proportional to 91,749.41, 126,619.31 and 69,047.63

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Solution

The fourth proportional to 91,749.41, 126,619.31 and 69,047.63 is: 95,289.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,749.41 : 126,619.31 = 69,047.63 : x
  2. Step 2: Convert to fraction form
    91,749.41/126,619.31 = 69,047.63/x
  3. Step 3: Cross multiply
    91,749.41x = 126,619.31 × 69,047.63
  4. Step 4: Simplify right side
    91,749.41x = 8,742,762,922.50
  5. Step 5: Solve for x
    x = 8,742,762,922.50/91,749.41
  6. Step 6: Final answer
    x = 95,289.58

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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.