Home / 51,985.40-71,759.30-40,477.56

Finding the Fourth Proportional to 51,985.40, 71,759.30 and 40,477.56

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Solution

The fourth proportional to 51,985.40, 71,759.30 and 40,477.56 is: 55,874.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,985.40 : 71,759.30 = 40,477.56 : x
  2. Step 2: Convert to fraction form
    51,985.40/71,759.30 = 40,477.56/x
  3. Step 3: Cross multiply
    51,985.40x = 71,759.30 × 40,477.56
  4. Step 4: Simplify right side
    51,985.40x = 2,904,641,168.92
  5. Step 5: Solve for x
    x = 2,904,641,168.92/51,985.40
  6. Step 6: Final answer
    x = 55,874.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.