Home / 77,991.02-107,632.56-43,987.08

Finding the Fourth Proportional to 77,991.02, 107,632.56 and 43,987.08

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Solution

The fourth proportional to 77,991.02, 107,632.56 and 43,987.08 is: 60,704.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,991.02 : 107,632.56 = 43,987.08 : x
  2. Step 2: Convert to fraction form
    77,991.02/107,632.56 = 43,987.08/x
  3. Step 3: Cross multiply
    77,991.02x = 107,632.56 × 43,987.08
  4. Step 4: Simplify right side
    77,991.02x = 4,734,442,027.32
  5. Step 5: Solve for x
    x = 4,734,442,027.32/77,991.02
  6. Step 6: Final answer
    x = 60,704.97

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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.