Home / 45,704.68-68,547.42-12,865

Finding the Fourth Proportional to 45,704.68, 68,547.42 and 12,865

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Solution

The fourth proportional to 45,704.68, 68,547.42 and 12,865 is: 19,294.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,704.68 : 68,547.42 = 12,865 : x
  2. Step 2: Convert to fraction form
    45,704.68/68,547.42 = 12,865/x
  3. Step 3: Cross multiply
    45,704.68x = 68,547.42 × 12,865
  4. Step 4: Simplify right side
    45,704.68x = 881,862,558.30
  5. Step 5: Solve for x
    x = 881,862,558.30/45,704.68
  6. Step 6: Final answer
    x = 19,294.80

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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.