Home / 77,461.28-116,177.94-20,535.56

Finding the Fourth Proportional to 77,461.28, 116,177.94 and 20,535.56

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Solution

The fourth proportional to 77,461.28, 116,177.94 and 20,535.56 is: 30,799.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,461.28 : 116,177.94 = 20,535.56 : x
  2. Step 2: Convert to fraction form
    77,461.28/116,177.94 = 20,535.56/x
  3. Step 3: Cross multiply
    77,461.28x = 116,177.94 × 20,535.56
  4. Step 4: Simplify right side
    77,461.28x = 2,385,779,057.55
  5. Step 5: Solve for x
    x = 2,385,779,057.55/77,461.28
  6. Step 6: Final answer
    x = 30,799.63

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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.