Home / 57,946.89-86,959.29-20,506.80

Finding the Fourth Proportional to 57,946.89, 86,959.29 and 20,506.80

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Solution

The fourth proportional to 57,946.89, 86,959.29 and 20,506.80 is: 30,773.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,946.89 : 86,959.29 = 20,506.80 : x
  2. Step 2: Convert to fraction form
    57,946.89/86,959.29 = 20,506.80/x
  3. Step 3: Cross multiply
    57,946.89x = 86,959.29 × 20,506.80
  4. Step 4: Simplify right side
    57,946.89x = 1,783,256,768.17
  5. Step 5: Solve for x
    x = 1,783,256,768.17/57,946.89
  6. Step 6: Final answer
    x = 30,773.99

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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.