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Finding the Fourth Proportional to 84,841.30, 127,298.40 and 43,288.30

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Solution

The fourth proportional to 84,841.30, 127,298.40 and 43,288.30 is: 64,951.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,841.30 : 127,298.40 = 43,288.30 : x
  2. Step 2: Convert to fraction form
    84,841.30/127,298.40 = 43,288.30/x
  3. Step 3: Cross multiply
    84,841.30x = 127,298.40 × 43,288.30
  4. Step 4: Simplify right side
    84,841.30x = 5,510,531,328.72
  5. Step 5: Solve for x
    x = 5,510,531,328.72/84,841.30
  6. Step 6: Final answer
    x = 64,951.05

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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.