Home / 45,740.38-68,539.70-31,727.64

Finding the Fourth Proportional to 45,740.38, 68,539.70 and 31,727.64

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Solution

The fourth proportional to 45,740.38, 68,539.70 and 31,727.64 is: 47,542.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,740.38 : 68,539.70 = 31,727.64 : x
  2. Step 2: Convert to fraction form
    45,740.38/68,539.70 = 31,727.64/x
  3. Step 3: Cross multiply
    45,740.38x = 68,539.70 × 31,727.64
  4. Step 4: Simplify right side
    45,740.38x = 2,174,602,927.31
  5. Step 5: Solve for x
    x = 2,174,602,927.31/45,740.38
  6. Step 6: Final answer
    x = 47,542.30

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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.