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Finding the Fourth Proportional to 45,844.80, 68,818.40 and 42,836.80

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Solution

The fourth proportional to 45,844.80, 68,818.40 and 42,836.80 is: 64,303.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,844.80 : 68,818.40 = 42,836.80 : x
  2. Step 2: Convert to fraction form
    45,844.80/68,818.40 = 42,836.80/x
  3. Step 3: Cross multiply
    45,844.80x = 68,818.40 × 42,836.80
  4. Step 4: Simplify right side
    45,844.80x = 2,947,960,037.12
  5. Step 5: Solve for x
    x = 2,947,960,037.12/45,844.80
  6. Step 6: Final answer
    x = 64,303.04

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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.