Home / 81,175.42-112,036.53-47,194.71

Finding the Fourth Proportional to 81,175.42, 112,036.53 and 47,194.71

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Solution

The fourth proportional to 81,175.42, 112,036.53 and 47,194.71 is: 65,137.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,175.42 : 112,036.53 = 47,194.71 : x
  2. Step 2: Convert to fraction form
    81,175.42/112,036.53 = 47,194.71/x
  3. Step 3: Cross multiply
    81,175.42x = 112,036.53 × 47,194.71
  4. Step 4: Simplify right side
    81,175.42x = 5,287,531,542.76
  5. Step 5: Solve for x
    x = 5,287,531,542.76/81,175.42
  6. Step 6: Final answer
    x = 65,137.10

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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.