Home / 48,540.06-66,967.01-28,390.50

Finding the Fourth Proportional to 48,540.06, 66,967.01 and 28,390.50

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Solution

The fourth proportional to 48,540.06, 66,967.01 and 28,390.50 is: 39,168.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,540.06 : 66,967.01 = 28,390.50 : x
  2. Step 2: Convert to fraction form
    48,540.06/66,967.01 = 28,390.50/x
  3. Step 3: Cross multiply
    48,540.06x = 66,967.01 × 28,390.50
  4. Step 4: Simplify right side
    48,540.06x = 1,901,226,755.45
  5. Step 5: Solve for x
    x = 1,901,226,755.45/48,540.06
  6. Step 6: Final answer
    x = 39,168.20

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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.