Home / 45,456.45-62,699.87-28,431.15

Finding the Fourth Proportional to 45,456.45, 62,699.87 and 28,431.15

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Solution

The fourth proportional to 45,456.45, 62,699.87 and 28,431.15 is: 39,216.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,456.45 : 62,699.87 = 28,431.15 : x
  2. Step 2: Convert to fraction form
    45,456.45/62,699.87 = 28,431.15/x
  3. Step 3: Cross multiply
    45,456.45x = 62,699.87 × 28,431.15
  4. Step 4: Simplify right side
    45,456.45x = 1,782,629,417.67
  5. Step 5: Solve for x
    x = 1,782,629,417.67/45,456.45
  6. Step 6: Final answer
    x = 39,216.20

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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.