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Finding the Fourth Proportional to 84,137.32, 126,178.66 and 27,962.32

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Solution

The fourth proportional to 84,137.32, 126,178.66 and 27,962.32 is: 41,934.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,137.32 : 126,178.66 = 27,962.32 : x
  2. Step 2: Convert to fraction form
    84,137.32/126,178.66 = 27,962.32/x
  3. Step 3: Cross multiply
    84,137.32x = 126,178.66 × 27,962.32
  4. Step 4: Simplify right side
    84,137.32x = 3,528,248,068.09
  5. Step 5: Solve for x
    x = 3,528,248,068.09/84,137.32
  6. Step 6: Final answer
    x = 41,934.40

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1.5x scale

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.