Home / 53,901.68-74,418.36-39,729.84

Finding the Fourth Proportional to 53,901.68, 74,418.36 and 39,729.84

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Solution

The fourth proportional to 53,901.68, 74,418.36 and 39,729.84 is: 54,852.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,901.68 : 74,418.36 = 39,729.84 : x
  2. Step 2: Convert to fraction form
    53,901.68/74,418.36 = 39,729.84/x
  3. Step 3: Cross multiply
    53,901.68x = 74,418.36 × 39,729.84
  4. Step 4: Simplify right side
    53,901.68x = 2,956,629,535.86
  5. Step 5: Solve for x
    x = 2,956,629,535.86/53,901.68
  6. Step 6: Final answer
    x = 54,852.27

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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.