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Finding the Fourth Proportional to 86,079.42, 118,807.29 and 54,226.98

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Solution

The fourth proportional to 86,079.42, 118,807.29 and 54,226.98 is: 74,844.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,079.42 : 118,807.29 = 54,226.98 : x
  2. Step 2: Convert to fraction form
    86,079.42/118,807.29 = 54,226.98/x
  3. Step 3: Cross multiply
    86,079.42x = 118,807.29 × 54,226.98
  4. Step 4: Simplify right side
    86,079.42x = 6,442,560,538.68
  5. Step 5: Solve for x
    x = 6,442,560,538.68/86,079.42
  6. Step 6: Final answer
    x = 74,844.38

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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.