Home / 71,688.11-107,534.61-19,097.64

Finding the Fourth Proportional to 71,688.11, 107,534.61 and 19,097.64

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Solution

The fourth proportional to 71,688.11, 107,534.61 and 19,097.64 is: 28,647.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,688.11 : 107,534.61 = 19,097.64 : x
  2. Step 2: Convert to fraction form
    71,688.11/107,534.61 = 19,097.64/x
  3. Step 3: Cross multiply
    71,688.11x = 107,534.61 × 19,097.64
  4. Step 4: Simplify right side
    71,688.11x = 2,053,657,269.32
  5. Step 5: Solve for x
    x = 2,053,657,269.32/71,688.11
  6. Step 6: Final answer
    x = 28,647.11

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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.