Home / 45,275.08-67,895.82-15,685

Finding the Fourth Proportional to 45,275.08, 67,895.82 and 15,685

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Solution

The fourth proportional to 45,275.08, 67,895.82 and 15,685 is: 23,521.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,275.08 : 67,895.82 = 15,685 : x
  2. Step 2: Convert to fraction form
    45,275.08/67,895.82 = 15,685/x
  3. Step 3: Cross multiply
    45,275.08x = 67,895.82 × 15,685
  4. Step 4: Simplify right side
    45,275.08x = 1,064,945,936.70
  5. Step 5: Solve for x
    x = 1,064,945,936.70/45,275.08
  6. Step 6: Final answer
    x = 23,521.68

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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.