Home / 51,643.31-71,261.91-28,977.62

Finding the Fourth Proportional to 51,643.31, 71,261.91 and 28,977.62

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Solution

The fourth proportional to 51,643.31, 71,261.91 and 28,977.62 is: 39,985.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,643.31 : 71,261.91 = 28,977.62 : x
  2. Step 2: Convert to fraction form
    51,643.31/71,261.91 = 28,977.62/x
  3. Step 3: Cross multiply
    51,643.31x = 71,261.91 × 28,977.62
  4. Step 4: Simplify right side
    51,643.31x = 2,065,000,192.14
  5. Step 5: Solve for x
    x = 2,065,000,192.14/51,643.31
  6. Step 6: Final answer
    x = 39,985.83

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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.