Home / 75,559.91-104,219.61-65,470.43

Finding the Fourth Proportional to 75,559.91, 104,219.61 and 65,470.43

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Solution

The fourth proportional to 75,559.91, 104,219.61 and 65,470.43 is: 90,303.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,559.91 : 104,219.61 = 65,470.43 : x
  2. Step 2: Convert to fraction form
    75,559.91/104,219.61 = 65,470.43/x
  3. Step 3: Cross multiply
    75,559.91x = 104,219.61 × 65,470.43
  4. Step 4: Simplify right side
    75,559.91x = 6,823,302,681.13
  5. Step 5: Solve for x
    x = 6,823,302,681.13/75,559.91
  6. Step 6: Final answer
    x = 90,303.21

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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.