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Finding the Fourth Proportional to 58,250, 87,352.80 and 20,803.08

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Solution

The fourth proportional to 58,250, 87,352.80 and 20,803.08 is: 31,196.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,250 : 87,352.80 = 20,803.08 : x
  2. Step 2: Convert to fraction form
    58,250/87,352.80 = 20,803.08/x
  3. Step 3: Cross multiply
    58,250x = 87,352.80 × 20,803.08
  4. Step 4: Simplify right side
    58,250x = 1,817,207,286.62
  5. Step 5: Solve for x
    x = 1,817,207,286.62/58,250
  6. Step 6: Final answer
    x = 31,196.69

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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.