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Finding the Fourth Proportional to 53,145.60, 79,545.60 and 41,395.20

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Solution

The fourth proportional to 53,145.60, 79,545.60 and 41,395.20 is: 61,958.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,145.60 : 79,545.60 = 41,395.20 : x
  2. Step 2: Convert to fraction form
    53,145.60/79,545.60 = 41,395.20/x
  3. Step 3: Cross multiply
    53,145.60x = 79,545.60 × 41,395.20
  4. Step 4: Simplify right side
    53,145.60x = 3,292,806,021.12
  5. Step 5: Solve for x
    x = 3,292,806,021.12/53,145.60
  6. Step 6: Final answer
    x = 61,958.21

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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.