Home / 75,855.16-104,673.90-42,320.44

Finding the Fourth Proportional to 75,855.16, 104,673.90 and 42,320.44

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Solution

The fourth proportional to 75,855.16, 104,673.90 and 42,320.44 is: 58,398.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,855.16 : 104,673.90 = 42,320.44 : x
  2. Step 2: Convert to fraction form
    75,855.16/104,673.90 = 42,320.44/x
  3. Step 3: Cross multiply
    75,855.16x = 104,673.90 × 42,320.44
  4. Step 4: Simplify right side
    75,855.16x = 4,429,845,504.52
  5. Step 5: Solve for x
    x = 4,429,845,504.52/75,855.16
  6. Step 6: Final answer
    x = 58,398.74

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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.