Home / 42,108.48-63,161.16-10,518.48

Finding the Fourth Proportional to 42,108.48, 63,161.16 and 10,518.48

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Solution

The fourth proportional to 42,108.48, 63,161.16 and 10,518.48 is: 15,777.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,108.48 : 63,161.16 = 10,518.48 : x
  2. Step 2: Convert to fraction form
    42,108.48/63,161.16 = 10,518.48/x
  3. Step 3: Cross multiply
    42,108.48x = 63,161.16 × 10,518.48
  4. Step 4: Simplify right side
    42,108.48x = 664,359,398.24
  5. Step 5: Solve for x
    x = 664,359,398.24/42,108.48
  6. Step 6: Final answer
    x = 15,777.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.