Home / 56,181.90-77,530.49-30,688.26

Finding the Fourth Proportional to 56,181.90, 77,530.49 and 30,688.26

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Solution

The fourth proportional to 56,181.90, 77,530.49 and 30,688.26 is: 42,349.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,181.90 : 77,530.49 = 30,688.26 : x
  2. Step 2: Convert to fraction form
    56,181.90/77,530.49 = 30,688.26/x
  3. Step 3: Cross multiply
    56,181.90x = 77,530.49 × 30,688.26
  4. Step 4: Simplify right side
    56,181.90x = 2,379,275,505.95
  5. Step 5: Solve for x
    x = 2,379,275,505.95/56,181.90
  6. Step 6: Final answer
    x = 42,349.50

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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.