Home / 47,907.77-71,870.30-19,812.56

Finding the Fourth Proportional to 47,907.77, 71,870.30 and 19,812.56

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Solution

The fourth proportional to 47,907.77, 71,870.30 and 19,812.56 is: 29,722.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,907.77 : 71,870.30 = 19,812.56 : x
  2. Step 2: Convert to fraction form
    47,907.77/71,870.30 = 19,812.56/x
  3. Step 3: Cross multiply
    47,907.77x = 71,870.30 × 19,812.56
  4. Step 4: Simplify right side
    47,907.77x = 1,423,934,172.55
  5. Step 5: Solve for x
    x = 1,423,934,172.55/47,907.77
  6. Step 6: Final answer
    x = 29,722.41

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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.