Home / 42,697.54-64,085.38-21,652.11

Finding the Fourth Proportional to 42,697.54, 64,085.38 and 21,652.11

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Solution

The fourth proportional to 42,697.54, 64,085.38 and 21,652.11 is: 32,497.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,697.54 : 64,085.38 = 21,652.11 : x
  2. Step 2: Convert to fraction form
    42,697.54/64,085.38 = 21,652.11/x
  3. Step 3: Cross multiply
    42,697.54x = 64,085.38 × 21,652.11
  4. Step 4: Simplify right side
    42,697.54x = 1,387,583,778.66
  5. Step 5: Solve for x
    x = 1,387,583,778.66/42,697.54
  6. Step 6: Final answer
    x = 32,497.98

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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.