Home / 42,102.45-63,153.12-12,117.48

Finding the Fourth Proportional to 42,102.45, 63,153.12 and 12,117.48

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Solution

The fourth proportional to 42,102.45, 63,153.12 and 12,117.48 is: 18,176.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,102.45 : 63,153.12 = 12,117.48 : x
  2. Step 2: Convert to fraction form
    42,102.45/63,153.12 = 12,117.48/x
  3. Step 3: Cross multiply
    42,102.45x = 63,153.12 × 12,117.48
  4. Step 4: Simplify right side
    42,102.45x = 765,256,668.54
  5. Step 5: Solve for x
    x = 765,256,668.54/42,102.45
  6. Step 6: Final answer
    x = 18,176.06

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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.