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Finding the Fourth Proportional to 53,268.60, 79,902.90 and 52,879.80

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Solution

The fourth proportional to 53,268.60, 79,902.90 and 52,879.80 is: 79,319.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,268.60 : 79,902.90 = 52,879.80 : x
  2. Step 2: Convert to fraction form
    53,268.60/79,902.90 = 52,879.80/x
  3. Step 3: Cross multiply
    53,268.60x = 79,902.90 × 52,879.80
  4. Step 4: Simplify right side
    53,268.60x = 4,225,249,371.42
  5. Step 5: Solve for x
    x = 4,225,249,371.42/53,268.60
  6. Step 6: Final answer
    x = 79,319.70

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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.