Home / 45,712.80-68,547.30-26,742.78

Finding the Fourth Proportional to 45,712.80, 68,547.30 and 26,742.78

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Solution

The fourth proportional to 45,712.80, 68,547.30 and 26,742.78 is: 40,101.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,712.80 : 68,547.30 = 26,742.78 : x
  2. Step 2: Convert to fraction form
    45,712.80/68,547.30 = 26,742.78/x
  3. Step 3: Cross multiply
    45,712.80x = 68,547.30 × 26,742.78
  4. Step 4: Simplify right side
    45,712.80x = 1,833,145,363.49
  5. Step 5: Solve for x
    x = 1,833,145,363.49/45,712.80
  6. Step 6: Final answer
    x = 40,101.36

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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.