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Finding the Fourth Proportional to 48,490.53, 66,919.20 and 26,980.40

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Solution

The fourth proportional to 48,490.53, 66,919.20 and 26,980.40 is: 37,234.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,490.53 : 66,919.20 = 26,980.40 : x
  2. Step 2: Convert to fraction form
    48,490.53/66,919.20 = 26,980.40/x
  3. Step 3: Cross multiply
    48,490.53x = 66,919.20 × 26,980.40
  4. Step 4: Simplify right side
    48,490.53x = 1,805,506,449.08
  5. Step 5: Solve for x
    x = 1,805,506,449.08/48,490.53
  6. Step 6: Final answer
    x = 37,234.21

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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.