Home / 53,421.53-73,721.34-31,921.09

Finding the Fourth Proportional to 53,421.53, 73,721.34 and 31,921.09

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Solution

The fourth proportional to 53,421.53, 73,721.34 and 31,921.09 is: 44,050.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,421.53 : 73,721.34 = 31,921.09 : x
  2. Step 2: Convert to fraction form
    53,421.53/73,721.34 = 31,921.09/x
  3. Step 3: Cross multiply
    53,421.53x = 73,721.34 × 31,921.09
  4. Step 4: Simplify right side
    53,421.53x = 2,353,265,344.76
  5. Step 5: Solve for x
    x = 2,353,265,344.76/53,421.53
  6. Step 6: Final answer
    x = 44,050.88

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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.