Home / 53,552.40-80,328.60-31,390.80

Finding the Fourth Proportional to 53,552.40, 80,328.60 and 31,390.80

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Solution

The fourth proportional to 53,552.40, 80,328.60 and 31,390.80 is: 47,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,552.40 : 80,328.60 = 31,390.80 : x
  2. Step 2: Convert to fraction form
    53,552.40/80,328.60 = 31,390.80/x
  3. Step 3: Cross multiply
    53,552.40x = 80,328.60 × 31,390.80
  4. Step 4: Simplify right side
    53,552.40x = 2,521,579,016.88
  5. Step 5: Solve for x
    x = 2,521,579,016.88/53,552.40
  6. Step 6: Final answer
    x = 47,086.20

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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.