Home / 53,977.47-80,966.22-18,917.13

Finding the Fourth Proportional to 53,977.47, 80,966.22 and 18,917.13

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Solution

The fourth proportional to 53,977.47, 80,966.22 and 18,917.13 is: 28,375.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,977.47 : 80,966.22 = 18,917.13 : x
  2. Step 2: Convert to fraction form
    53,977.47/80,966.22 = 18,917.13/x
  3. Step 3: Cross multiply
    53,977.47x = 80,966.22 × 18,917.13
  4. Step 4: Simplify right side
    53,977.47x = 1,531,648,509.35
  5. Step 5: Solve for x
    x = 1,531,648,509.35/53,977.47
  6. Step 6: Final answer
    x = 28,375.70

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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.