Home / 79,261.28-109,362.60-53,771.12

Finding the Fourth Proportional to 79,261.28, 109,362.60 and 53,771.12

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Solution

The fourth proportional to 79,261.28, 109,362.60 and 53,771.12 is: 74,191.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,261.28 : 109,362.60 = 53,771.12 : x
  2. Step 2: Convert to fraction form
    79,261.28/109,362.60 = 53,771.12/x
  3. Step 3: Cross multiply
    79,261.28x = 109,362.60 × 53,771.12
  4. Step 4: Simplify right side
    79,261.28x = 5,880,549,488.11
  5. Step 5: Solve for x
    x = 5,880,549,488.11/79,261.28
  6. Step 6: Final answer
    x = 74,191.96

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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.