Home / 45,686.09-68,478.24-19,017.38

Finding the Fourth Proportional to 45,686.09, 68,478.24 and 19,017.38

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Solution

The fourth proportional to 45,686.09, 68,478.24 and 19,017.38 is: 28,504.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,686.09 : 68,478.24 = 19,017.38 : x
  2. Step 2: Convert to fraction form
    45,686.09/68,478.24 = 19,017.38/x
  3. Step 3: Cross multiply
    45,686.09x = 68,478.24 × 19,017.38
  4. Step 4: Simplify right side
    45,686.09x = 1,302,276,711.81
  5. Step 5: Solve for x
    x = 1,302,276,711.81/45,686.09
  6. Step 6: Final answer
    x = 28,504.88

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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.