Home / 81,577.10-112,538.19-52,905.83

Finding the Fourth Proportional to 81,577.10, 112,538.19 and 52,905.83

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Solution

The fourth proportional to 81,577.10, 112,538.19 and 52,905.83 is: 72,985.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,577.10 : 112,538.19 = 52,905.83 : x
  2. Step 2: Convert to fraction form
    81,577.10/112,538.19 = 52,905.83/x
  3. Step 3: Cross multiply
    81,577.10x = 112,538.19 × 52,905.83
  4. Step 4: Simplify right side
    81,577.10x = 5,953,926,348.65
  5. Step 5: Solve for x
    x = 5,953,926,348.65/81,577.10
  6. Step 6: Final answer
    x = 72,985.27

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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.