Home / 53,521.40-80,293.36-20,240.72

Finding the Fourth Proportional to 53,521.40, 80,293.36 and 20,240.72

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Solution

The fourth proportional to 53,521.40, 80,293.36 and 20,240.72 is: 30,365.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,521.40 : 80,293.36 = 20,240.72 : x
  2. Step 2: Convert to fraction form
    53,521.40/80,293.36 = 20,240.72/x
  3. Step 3: Cross multiply
    53,521.40x = 80,293.36 × 20,240.72
  4. Step 4: Simplify right side
    53,521.40x = 1,625,195,417.62
  5. Step 5: Solve for x
    x = 1,625,195,417.62/53,521.40
  6. Step 6: Final answer
    x = 30,365.34

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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.