Home / 50,729.29-70,073.30-38,938.32

Finding the Fourth Proportional to 50,729.29, 70,073.30 and 38,938.32

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Solution

The fourth proportional to 50,729.29, 70,073.30 and 38,938.32 is: 53,786.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,729.29 : 70,073.30 = 38,938.32 : x
  2. Step 2: Convert to fraction form
    50,729.29/70,073.30 = 38,938.32/x
  3. Step 3: Cross multiply
    50,729.29x = 70,073.30 × 38,938.32
  4. Step 4: Simplify right side
    50,729.29x = 2,728,536,676.20
  5. Step 5: Solve for x
    x = 2,728,536,676.20/50,729.29
  6. Step 6: Final answer
    x = 53,786.22

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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.