Home / 77,175.12-106,478.16-43,180.08

Finding the Fourth Proportional to 77,175.12, 106,478.16 and 43,180.08

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Solution

The fourth proportional to 77,175.12, 106,478.16 and 43,180.08 is: 59,575.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,175.12 : 106,478.16 = 43,180.08 : x
  2. Step 2: Convert to fraction form
    77,175.12/106,478.16 = 43,180.08/x
  3. Step 3: Cross multiply
    77,175.12x = 106,478.16 × 43,180.08
  4. Step 4: Simplify right side
    77,175.12x = 4,597,735,467.05
  5. Step 5: Solve for x
    x = 4,597,735,467.05/77,175.12
  6. Step 6: Final answer
    x = 59,575.36

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1.5x scale

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.