Home / 77,666.28-116,324.38-54,396.60

Finding the Fourth Proportional to 77,666.28, 116,324.38 and 54,396.60

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Solution

The fourth proportional to 77,666.28, 116,324.38 and 54,396.60 is: 81,472.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,666.28 : 116,324.38 = 54,396.60 : x
  2. Step 2: Convert to fraction form
    77,666.28/116,324.38 = 54,396.60/x
  3. Step 3: Cross multiply
    77,666.28x = 116,324.38 × 54,396.60
  4. Step 4: Simplify right side
    77,666.28x = 6,327,650,769.11
  5. Step 5: Solve for x
    x = 6,327,650,769.11/77,666.28
  6. Step 6: Final answer
    x = 81,472.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.