Home / 52,843.48-72,933.26-40,138.72

Finding the Fourth Proportional to 52,843.48, 72,933.26 and 40,138.72

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Solution

The fourth proportional to 52,843.48, 72,933.26 and 40,138.72 is: 55,398.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,843.48 : 72,933.26 = 40,138.72 : x
  2. Step 2: Convert to fraction form
    52,843.48/72,933.26 = 40,138.72/x
  3. Step 3: Cross multiply
    52,843.48x = 72,933.26 × 40,138.72
  4. Step 4: Simplify right side
    52,843.48x = 2,927,447,701.83
  5. Step 5: Solve for x
    x = 2,927,447,701.83/52,843.48
  6. Step 6: Final answer
    x = 55,398.47

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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.