Home / 75,519.40-113,278.70-19,359.40

Finding the Fourth Proportional to 75,519.40, 113,278.70 and 19,359.40

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Solution

The fourth proportional to 75,519.40, 113,278.70 and 19,359.40 is: 29,039.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,519.40 : 113,278.70 = 19,359.40 : x
  2. Step 2: Convert to fraction form
    75,519.40/113,278.70 = 19,359.40/x
  3. Step 3: Cross multiply
    75,519.40x = 113,278.70 × 19,359.40
  4. Step 4: Simplify right side
    75,519.40x = 2,193,007,664.78
  5. Step 5: Solve for x
    x = 2,193,007,664.78/75,519.40
  6. Step 6: Final answer
    x = 29,039.00

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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.