Home / 75,069.12-103,632.89-43,231.87

Finding the Fourth Proportional to 75,069.12, 103,632.89 and 43,231.87

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Solution

The fourth proportional to 75,069.12, 103,632.89 and 43,231.87 is: 59,681.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,069.12 : 103,632.89 = 43,231.87 : x
  2. Step 2: Convert to fraction form
    75,069.12/103,632.89 = 43,231.87/x
  3. Step 3: Cross multiply
    75,069.12x = 103,632.89 × 43,231.87
  4. Step 4: Simplify right side
    75,069.12x = 4,480,243,628.20
  5. Step 5: Solve for x
    x = 4,480,243,628.20/75,069.12
  6. Step 6: Final answer
    x = 59,681.58

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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.