Home / 56,505.44-77,991.84-38,607.68

Finding the Fourth Proportional to 56,505.44, 77,991.84 and 38,607.68

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Solution

The fourth proportional to 56,505.44, 77,991.84 and 38,607.68 is: 53,288.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,505.44 : 77,991.84 = 38,607.68 : x
  2. Step 2: Convert to fraction form
    56,505.44/77,991.84 = 38,607.68/x
  3. Step 3: Cross multiply
    56,505.44x = 77,991.84 × 38,607.68
  4. Step 4: Simplify right side
    56,505.44x = 3,011,084,001.33
  5. Step 5: Solve for x
    x = 3,011,084,001.33/56,505.44
  6. Step 6: Final answer
    x = 53,288.39

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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.