Home / 45,777.88-68,677.78-19,109.04

Finding the Fourth Proportional to 45,777.88, 68,677.78 and 19,109.04

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Solution

The fourth proportional to 45,777.88, 68,677.78 and 19,109.04 is: 28,668.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,777.88 : 68,677.78 = 19,109.04 : x
  2. Step 2: Convert to fraction form
    45,777.88/68,677.78 = 19,109.04/x
  3. Step 3: Cross multiply
    45,777.88x = 68,677.78 × 19,109.04
  4. Step 4: Simplify right side
    45,777.88x = 1,312,366,445.13
  5. Step 5: Solve for x
    x = 1,312,366,445.13/45,777.88
  6. Step 6: Final answer
    x = 28,668.14

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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.