Home / 56,671.08-78,204-31,520.04

Finding the Fourth Proportional to 56,671.08, 78,204 and 31,520.04

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Solution

The fourth proportional to 56,671.08, 78,204 and 31,520.04 is: 43,496.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,671.08 : 78,204 = 31,520.04 : x
  2. Step 2: Convert to fraction form
    56,671.08/78,204 = 31,520.04/x
  3. Step 3: Cross multiply
    56,671.08x = 78,204 × 31,520.04
  4. Step 4: Simplify right side
    56,671.08x = 2,464,993,208.16
  5. Step 5: Solve for x
    x = 2,464,993,208.16/56,671.08
  6. Step 6: Final answer
    x = 43,496.49

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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.