Home / 45,419.16-68,139.53-15,435.39

Finding the Fourth Proportional to 45,419.16, 68,139.53 and 15,435.39

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Solution

The fourth proportional to 45,419.16, 68,139.53 and 15,435.39 is: 23,156.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,419.16 : 68,139.53 = 15,435.39 : x
  2. Step 2: Convert to fraction form
    45,419.16/68,139.53 = 15,435.39/x
  3. Step 3: Cross multiply
    45,419.16x = 68,139.53 × 15,435.39
  4. Step 4: Simplify right side
    45,419.16x = 1,051,760,456.20
  5. Step 5: Solve for x
    x = 1,051,760,456.20/45,419.16
  6. Step 6: Final answer
    x = 23,156.76

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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.