Home / 75,849.75-104,672.70-42,315.75

Finding the Fourth Proportional to 75,849.75, 104,672.70 and 42,315.75

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Solution

The fourth proportional to 75,849.75, 104,672.70 and 42,315.75 is: 58,395.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,849.75 : 104,672.70 = 42,315.75 : x
  2. Step 2: Convert to fraction form
    75,849.75/104,672.70 = 42,315.75/x
  3. Step 3: Cross multiply
    75,849.75x = 104,672.70 × 42,315.75
  4. Step 4: Simplify right side
    75,849.75x = 4,429,303,805.03
  5. Step 5: Solve for x
    x = 4,429,303,805.03/75,849.75
  6. Step 6: Final answer
    x = 58,395.76

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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.