Home / 81,654.24-112,689.36-45,846.60

Finding the Fourth Proportional to 81,654.24, 112,689.36 and 45,846.60

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Solution

The fourth proportional to 81,654.24, 112,689.36 and 45,846.60 is: 63,271.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,654.24 : 112,689.36 = 45,846.60 : x
  2. Step 2: Convert to fraction form
    81,654.24/112,689.36 = 45,846.60/x
  3. Step 3: Cross multiply
    81,654.24x = 112,689.36 × 45,846.60
  4. Step 4: Simplify right side
    81,654.24x = 5,166,424,012.18
  5. Step 5: Solve for x
    x = 5,166,424,012.18/81,654.24
  6. Step 6: Final answer
    x = 63,271.96

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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.