Home / 50,985.12-70,359.36-28,629.12

Finding the Fourth Proportional to 50,985.12, 70,359.36 and 28,629.12

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Solution

The fourth proportional to 50,985.12, 70,359.36 and 28,629.12 is: 39,508.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,985.12 : 70,359.36 = 28,629.12 : x
  2. Step 2: Convert to fraction form
    50,985.12/70,359.36 = 28,629.12/x
  3. Step 3: Cross multiply
    50,985.12x = 70,359.36 × 28,629.12
  4. Step 4: Simplify right side
    50,985.12x = 2,014,326,560.56
  5. Step 5: Solve for x
    x = 2,014,326,560.56/50,985.12
  6. Step 6: Final answer
    x = 39,508.13

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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.