Home / 69,070.84-103,595.99-19,145.72

Finding the Fourth Proportional to 69,070.84, 103,595.99 and 19,145.72

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Solution

The fourth proportional to 69,070.84, 103,595.99 and 19,145.72 is: 28,715.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,070.84 : 103,595.99 = 19,145.72 : x
  2. Step 2: Convert to fraction form
    69,070.84/103,595.99 = 19,145.72/x
  3. Step 3: Cross multiply
    69,070.84x = 103,595.99 × 19,145.72
  4. Step 4: Simplify right side
    69,070.84x = 1,983,419,980.92
  5. Step 5: Solve for x
    x = 1,983,419,980.92/69,070.84
  6. Step 6: Final answer
    x = 28,715.74

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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.