Home / 75,063.31-112,591.01-18,903.38

Finding the Fourth Proportional to 75,063.31, 112,591.01 and 18,903.38

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Solution

The fourth proportional to 75,063.31, 112,591.01 and 18,903.38 is: 28,354.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,063.31 : 112,591.01 = 18,903.38 : x
  2. Step 2: Convert to fraction form
    75,063.31/112,591.01 = 18,903.38/x
  3. Step 3: Cross multiply
    75,063.31x = 112,591.01 × 18,903.38
  4. Step 4: Simplify right side
    75,063.31x = 2,128,350,130.92
  5. Step 5: Solve for x
    x = 2,128,350,130.92/75,063.31
  6. Step 6: Final answer
    x = 28,354.07

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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.