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Finding the Fourth Proportional to 75,269.69, 112,904.58 and 19,114.01

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Solution

The fourth proportional to 75,269.69, 112,904.58 and 19,114.01 is: 28,671.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,269.69 : 112,904.58 = 19,114.01 : x
  2. Step 2: Convert to fraction form
    75,269.69/112,904.58 = 19,114.01/x
  3. Step 3: Cross multiply
    75,269.69x = 112,904.58 × 19,114.01
  4. Step 4: Simplify right side
    75,269.69x = 2,158,059,201.71
  5. Step 5: Solve for x
    x = 2,158,059,201.71/75,269.69
  6. Step 6: Final answer
    x = 28,671.03

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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.