Home / 53,221.12-79,780.48-23,642.88

Finding the Fourth Proportional to 53,221.12, 79,780.48 and 23,642.88

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Solution

The fourth proportional to 53,221.12, 79,780.48 and 23,642.88 is: 35,441.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,221.12 : 79,780.48 = 23,642.88 : x
  2. Step 2: Convert to fraction form
    53,221.12/79,780.48 = 23,642.88/x
  3. Step 3: Cross multiply
    53,221.12x = 79,780.48 × 23,642.88
  4. Step 4: Simplify right side
    53,221.12x = 1,886,240,314.98
  5. Step 5: Solve for x
    x = 1,886,240,314.98/53,221.12
  6. Step 6: Final answer
    x = 35,441.57

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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.