Home / 55,939.02-83,905.78-20,875.94

Finding the Fourth Proportional to 55,939.02, 83,905.78 and 20,875.94

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Solution

The fourth proportional to 55,939.02, 83,905.78 and 20,875.94 is: 31,312.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,939.02 : 83,905.78 = 20,875.94 : x
  2. Step 2: Convert to fraction form
    55,939.02/83,905.78 = 20,875.94/x
  3. Step 3: Cross multiply
    55,939.02x = 83,905.78 × 20,875.94
  4. Step 4: Simplify right side
    55,939.02x = 1,751,612,028.93
  5. Step 5: Solve for x
    x = 1,751,612,028.93/55,939.02
  6. Step 6: Final answer
    x = 31,312.88

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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.