Home / 53,748.18-80,645.49-20,478.24

Finding the Fourth Proportional to 53,748.18, 80,645.49 and 20,478.24

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Solution

The fourth proportional to 53,748.18, 80,645.49 and 20,478.24 is: 30,726.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,748.18 : 80,645.49 = 20,478.24 : x
  2. Step 2: Convert to fraction form
    53,748.18/80,645.49 = 20,478.24/x
  3. Step 3: Cross multiply
    53,748.18x = 80,645.49 × 20,478.24
  4. Step 4: Simplify right side
    53,748.18x = 1,651,477,699.14
  5. Step 5: Solve for x
    x = 1,651,477,699.14/53,748.18
  6. Step 6: Final answer
    x = 30,726.21

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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.