Home / 75,021.13-112,587-35,578.36

Finding the Fourth Proportional to 75,021.13, 112,587 and 35,578.36

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Solution

The fourth proportional to 75,021.13, 112,587 and 35,578.36 is: 53,393.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,021.13 : 112,587 = 35,578.36 : x
  2. Step 2: Convert to fraction form
    75,021.13/112,587 = 35,578.36/x
  3. Step 3: Cross multiply
    75,021.13x = 112,587 × 35,578.36
  4. Step 4: Simplify right side
    75,021.13x = 4,005,660,817.32
  5. Step 5: Solve for x
    x = 4,005,660,817.32/75,021.13
  6. Step 6: Final answer
    x = 53,393.77

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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.