Home / 45,713.65-68,545.81-20,740.07

Finding the Fourth Proportional to 45,713.65, 68,545.81 and 20,740.07

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Solution

The fourth proportional to 45,713.65, 68,545.81 and 20,740.07 is: 31,098.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,713.65 : 68,545.81 = 20,740.07 : x
  2. Step 2: Convert to fraction form
    45,713.65/68,545.81 = 20,740.07/x
  3. Step 3: Cross multiply
    45,713.65x = 68,545.81 × 20,740.07
  4. Step 4: Simplify right side
    45,713.65x = 1,421,644,554.88
  5. Step 5: Solve for x
    x = 1,421,644,554.88/45,713.65
  6. Step 6: Final answer
    x = 31,098.91

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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.