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Finding the Fourth Proportional to 79,114.76, 109,177.52 and 45,122.37

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Solution

The fourth proportional to 79,114.76, 109,177.52 and 45,122.37 is: 62,268.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,114.76 : 109,177.52 = 45,122.37 : x
  2. Step 2: Convert to fraction form
    79,114.76/109,177.52 = 45,122.37/x
  3. Step 3: Cross multiply
    79,114.76x = 109,177.52 × 45,122.37
  4. Step 4: Simplify right side
    79,114.76x = 4,926,348,227.51
  5. Step 5: Solve for x
    x = 4,926,348,227.51/79,114.76
  6. Step 6: Final answer
    x = 62,268.39

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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.