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Finding the Fourth Proportional to 80,732.68, 111,426.51 and 53,460.68

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Solution

The fourth proportional to 80,732.68, 111,426.51 and 53,460.68 is: 73,785.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,732.68 : 111,426.51 = 53,460.68 : x
  2. Step 2: Convert to fraction form
    80,732.68/111,426.51 = 53,460.68/x
  3. Step 3: Cross multiply
    80,732.68x = 111,426.51 × 53,460.68
  4. Step 4: Simplify right side
    80,732.68x = 5,956,936,994.63
  5. Step 5: Solve for x
    x = 5,956,936,994.63/80,732.68
  6. Step 6: Final answer
    x = 73,785.94

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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.