Home / 48,745.47-67,279.38-30,864.30

Finding the Fourth Proportional to 48,745.47, 67,279.38 and 30,864.30

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Solution

The fourth proportional to 48,745.47, 67,279.38 and 30,864.30 is: 42,599.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,745.47 : 67,279.38 = 30,864.30 : x
  2. Step 2: Convert to fraction form
    48,745.47/67,279.38 = 30,864.30/x
  3. Step 3: Cross multiply
    48,745.47x = 67,279.38 × 30,864.30
  4. Step 4: Simplify right side
    48,745.47x = 2,076,530,968.13
  5. Step 5: Solve for x
    x = 2,076,530,968.13/48,745.47
  6. Step 6: Final answer
    x = 42,599.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.