Home / 55,129.08-82,720.95-21,848.41

Finding the Fourth Proportional to 55,129.08, 82,720.95 and 21,848.41

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Solution

The fourth proportional to 55,129.08, 82,720.95 and 21,848.41 is: 32,783.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,129.08 : 82,720.95 = 21,848.41 : x
  2. Step 2: Convert to fraction form
    55,129.08/82,720.95 = 21,848.41/x
  3. Step 3: Cross multiply
    55,129.08x = 82,720.95 × 21,848.41
  4. Step 4: Simplify right side
    55,129.08x = 1,807,320,708.34
  5. Step 5: Solve for x
    x = 1,807,320,708.34/55,129.08
  6. Step 6: Final answer
    x = 32,783.44

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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.