Home / 45,711.18-68,575.35-20,752.98

Finding the Fourth Proportional to 45,711.18, 68,575.35 and 20,752.98

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Solution

The fourth proportional to 45,711.18, 68,575.35 and 20,752.98 is: 31,133.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,711.18 : 68,575.35 = 20,752.98 : x
  2. Step 2: Convert to fraction form
    45,711.18/68,575.35 = 20,752.98/x
  3. Step 3: Cross multiply
    45,711.18x = 68,575.35 × 20,752.98
  4. Step 4: Simplify right side
    45,711.18x = 1,423,142,867.04
  5. Step 5: Solve for x
    x = 1,423,142,867.04/45,711.18
  6. Step 6: Final answer
    x = 31,133.37

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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.