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Finding the Fourth Proportional to 58,247.40, 87,371.10 and 18,805.80

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Solution

The fourth proportional to 58,247.40, 87,371.10 and 18,805.80 is: 28,208.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,247.40 : 87,371.10 = 18,805.80 : x
  2. Step 2: Convert to fraction form
    58,247.40/87,371.10 = 18,805.80/x
  3. Step 3: Cross multiply
    58,247.40x = 87,371.10 × 18,805.80
  4. Step 4: Simplify right side
    58,247.40x = 1,643,083,432.38
  5. Step 5: Solve for x
    x = 1,643,083,432.38/58,247.40
  6. Step 6: Final answer
    x = 28,208.70

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1.5x scale

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.