Home / 56,120.05-84,116.49-18,671.32

Finding the Fourth Proportional to 56,120.05, 84,116.49 and 18,671.32

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Solution

The fourth proportional to 56,120.05, 84,116.49 and 18,671.32 is: 27,985.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,120.05 : 84,116.49 = 18,671.32 : x
  2. Step 2: Convert to fraction form
    56,120.05/84,116.49 = 18,671.32/x
  3. Step 3: Cross multiply
    56,120.05x = 84,116.49 × 18,671.32
  4. Step 4: Simplify right side
    56,120.05x = 1,570,565,902.07
  5. Step 5: Solve for x
    x = 1,570,565,902.07/56,120.05
  6. Step 6: Final answer
    x = 27,985.83

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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.