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Finding the Fourth Proportional to 79,097.60, 109,109.76 and 45,557.76

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Solution

The fourth proportional to 79,097.60, 109,109.76 and 45,557.76 is: 62,843.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,097.60 : 109,109.76 = 45,557.76 : x
  2. Step 2: Convert to fraction form
    79,097.60/109,109.76 = 45,557.76/x
  3. Step 3: Cross multiply
    79,097.60x = 109,109.76 × 45,557.76
  4. Step 4: Simplify right side
    79,097.60x = 4,970,796,259.74
  5. Step 5: Solve for x
    x = 4,970,796,259.74/79,097.60
  6. Step 6: Final answer
    x = 62,843.83

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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.