Home / 53,014.42-73,129.40-31,781.35

Finding the Fourth Proportional to 53,014.42, 73,129.40 and 31,781.35

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Solution

The fourth proportional to 53,014.42, 73,129.40 and 31,781.35 is: 43,839.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,014.42 : 73,129.40 = 31,781.35 : x
  2. Step 2: Convert to fraction form
    53,014.42/73,129.40 = 31,781.35/x
  3. Step 3: Cross multiply
    53,014.42x = 73,129.40 × 31,781.35
  4. Step 4: Simplify right side
    53,014.42x = 2,324,150,897.78
  5. Step 5: Solve for x
    x = 2,324,150,897.78/53,014.42
  6. Step 6: Final answer
    x = 43,839.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.