Home / 52,067.10-77,991.30-28,666.20

Finding the Fourth Proportional to 52,067.10, 77,991.30 and 28,666.20

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Solution

The fourth proportional to 52,067.10, 77,991.30 and 28,666.20 is: 42,939.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,067.10 : 77,991.30 = 28,666.20 : x
  2. Step 2: Convert to fraction form
    52,067.10/77,991.30 = 28,666.20/x
  3. Step 3: Cross multiply
    52,067.10x = 77,991.30 × 28,666.20
  4. Step 4: Simplify right side
    52,067.10x = 2,235,714,204.06
  5. Step 5: Solve for x
    x = 2,235,714,204.06/52,067.10
  6. Step 6: Final answer
    x = 42,939.10

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1.5x scale

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.