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Finding the Fourth Proportional to 73,030.80, 109,589.40 and 48,142.80

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Solution

The fourth proportional to 73,030.80, 109,589.40 and 48,142.80 is: 72,242.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,030.80 : 109,589.40 = 48,142.80 : x
  2. Step 2: Convert to fraction form
    73,030.80/109,589.40 = 48,142.80/x
  3. Step 3: Cross multiply
    73,030.80x = 109,589.40 × 48,142.80
  4. Step 4: Simplify right side
    73,030.80x = 5,275,940,566.32
  5. Step 5: Solve for x
    x = 5,275,940,566.32/73,030.80
  6. Step 6: Final answer
    x = 72,242.68

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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.