Home / 82,770.20-114,143.47-55,607.66

Finding the Fourth Proportional to 82,770.20, 114,143.47 and 55,607.66

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Solution

The fourth proportional to 82,770.20, 114,143.47 and 55,607.66 is: 76,685.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,770.20 : 114,143.47 = 55,607.66 : x
  2. Step 2: Convert to fraction form
    82,770.20/114,143.47 = 55,607.66/x
  3. Step 3: Cross multiply
    82,770.20x = 114,143.47 × 55,607.66
  4. Step 4: Simplify right side
    82,770.20x = 6,347,250,561.24
  5. Step 5: Solve for x
    x = 6,347,250,561.24/82,770.20
  6. Step 6: Final answer
    x = 76,685.22

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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.