Home / 75,740.31-104,621.46-56,586.80

Finding the Fourth Proportional to 75,740.31, 104,621.46 and 56,586.80

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Solution

The fourth proportional to 75,740.31, 104,621.46 and 56,586.80 is: 78,164.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,740.31 : 104,621.46 = 56,586.80 : x
  2. Step 2: Convert to fraction form
    75,740.31/104,621.46 = 56,586.80/x
  3. Step 3: Cross multiply
    75,740.31x = 104,621.46 × 56,586.80
  4. Step 4: Simplify right side
    75,740.31x = 5,920,193,109.62
  5. Step 5: Solve for x
    x = 5,920,193,109.62/75,740.31
  6. Step 6: Final answer
    x = 78,164.36

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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.