Home / 92,685.56-139,007.02-55,256.20

Finding the Fourth Proportional to 92,685.56, 139,007.02 and 55,256.20

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Solution

The fourth proportional to 92,685.56, 139,007.02 and 55,256.20 is: 82,871.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,685.56 : 139,007.02 = 55,256.20 : x
  2. Step 2: Convert to fraction form
    92,685.56/139,007.02 = 55,256.20/x
  3. Step 3: Cross multiply
    92,685.56x = 139,007.02 × 55,256.20
  4. Step 4: Simplify right side
    92,685.56x = 7,680,999,698.52
  5. Step 5: Solve for x
    x = 7,680,999,698.52/92,685.56
  6. Step 6: Final answer
    x = 82,871.59

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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.