Home / 53,177.52-79,740.36-30,378.72

Finding the Fourth Proportional to 53,177.52, 79,740.36 and 30,378.72

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Solution

The fourth proportional to 53,177.52, 79,740.36 and 30,378.72 is: 45,553.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,177.52 : 79,740.36 = 30,378.72 : x
  2. Step 2: Convert to fraction form
    53,177.52/79,740.36 = 30,378.72/x
  3. Step 3: Cross multiply
    53,177.52x = 79,740.36 × 30,378.72
  4. Step 4: Simplify right side
    53,177.52x = 2,422,410,069.14
  5. Step 5: Solve for x
    x = 2,422,410,069.14/53,177.52
  6. Step 6: Final answer
    x = 45,553.27

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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.