Home / 45,716.40-68,551.92-14,547.60

Finding the Fourth Proportional to 45,716.40, 68,551.92 and 14,547.60

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Solution

The fourth proportional to 45,716.40, 68,551.92 and 14,547.60 is: 21,814.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,716.40 : 68,551.92 = 14,547.60 : x
  2. Step 2: Convert to fraction form
    45,716.40/68,551.92 = 14,547.60/x
  3. Step 3: Cross multiply
    45,716.40x = 68,551.92 × 14,547.60
  4. Step 4: Simplify right side
    45,716.40x = 997,265,911.39
  5. Step 5: Solve for x
    x = 997,265,911.39/45,716.40
  6. Step 6: Final answer
    x = 21,814.18

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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.