Home / 78,170.08-117,158.80-44,464.36

Finding the Fourth Proportional to 78,170.08, 117,158.80 and 44,464.36

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Solution

The fourth proportional to 78,170.08, 117,158.80 and 44,464.36 is: 66,641.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,170.08 : 117,158.80 = 44,464.36 : x
  2. Step 2: Convert to fraction form
    78,170.08/117,158.80 = 44,464.36/x
  3. Step 3: Cross multiply
    78,170.08x = 117,158.80 × 44,464.36
  4. Step 4: Simplify right side
    78,170.08x = 5,209,391,060.37
  5. Step 5: Solve for x
    x = 5,209,391,060.37/78,170.08
  6. Step 6: Final answer
    x = 66,641.75

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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.