Home / 75,083.10-112,641.21-28,336.38

Finding the Fourth Proportional to 75,083.10, 112,641.21 and 28,336.38

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Solution

The fourth proportional to 75,083.10, 112,641.21 and 28,336.38 is: 42,510.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,083.10 : 112,641.21 = 28,336.38 : x
  2. Step 2: Convert to fraction form
    75,083.10/112,641.21 = 28,336.38/x
  3. Step 3: Cross multiply
    75,083.10x = 112,641.21 × 28,336.38
  4. Step 4: Simplify right side
    75,083.10x = 3,191,844,130.22
  5. Step 5: Solve for x
    x = 3,191,844,130.22/75,083.10
  6. Step 6: Final answer
    x = 42,510.82

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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.