Home / 53,713.21-80,569.85-20,425.59

Finding the Fourth Proportional to 53,713.21, 80,569.85 and 20,425.59

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Solution

The fourth proportional to 53,713.21, 80,569.85 and 20,425.59 is: 30,638.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,713.21 : 80,569.85 = 20,425.59 : x
  2. Step 2: Convert to fraction form
    53,713.21/80,569.85 = 20,425.59/x
  3. Step 3: Cross multiply
    53,713.21x = 80,569.85 × 20,425.59
  4. Step 4: Simplify right side
    53,713.21x = 1,645,686,722.46
  5. Step 5: Solve for x
    x = 1,645,686,722.46/53,713.21
  6. Step 6: Final answer
    x = 30,638.40

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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.