Home / 45,212.12-62,385.13-30,127.31

Finding the Fourth Proportional to 45,212.12, 62,385.13 and 30,127.31

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Solution

The fourth proportional to 45,212.12, 62,385.13 and 30,127.31 is: 41,570.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,212.12 : 62,385.13 = 30,127.31 : x
  2. Step 2: Convert to fraction form
    45,212.12/62,385.13 = 30,127.31/x
  3. Step 3: Cross multiply
    45,212.12x = 62,385.13 × 30,127.31
  4. Step 4: Simplify right side
    45,212.12x = 1,879,496,150.90
  5. Step 5: Solve for x
    x = 1,879,496,150.90/45,212.12
  6. Step 6: Final answer
    x = 41,570.63

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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.