Home / 91,147.60-125,779.36-67,265.56

Finding the Fourth Proportional to 91,147.60, 125,779.36 and 67,265.56

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Solution

The fourth proportional to 91,147.60, 125,779.36 and 67,265.56 is: 92,823.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,147.60 : 125,779.36 = 67,265.56 : x
  2. Step 2: Convert to fraction form
    91,147.60/125,779.36 = 67,265.56/x
  3. Step 3: Cross multiply
    91,147.60x = 125,779.36 × 67,265.56
  4. Step 4: Simplify right side
    91,147.60x = 8,460,619,086.84
  5. Step 5: Solve for x
    x = 8,460,619,086.84/91,147.60
  6. Step 6: Final answer
    x = 92,823.28

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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.