Home / 56,851.02-85,288.86-21,790.71

Finding the Fourth Proportional to 56,851.02, 85,288.86 and 21,790.71

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Solution

The fourth proportional to 56,851.02, 85,288.86 and 21,790.71 is: 32,690.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,851.02 : 85,288.86 = 21,790.71 : x
  2. Step 2: Convert to fraction form
    56,851.02/85,288.86 = 21,790.71/x
  3. Step 3: Cross multiply
    56,851.02x = 85,288.86 × 21,790.71
  4. Step 4: Simplify right side
    56,851.02x = 1,858,504,814.49
  5. Step 5: Solve for x
    x = 1,858,504,814.49/56,851.02
  6. Step 6: Final answer
    x = 32,690.79

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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.