Home / 48,771.04-73,142.10-20,690.72

Finding the Fourth Proportional to 48,771.04, 73,142.10 and 20,690.72

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Solution

The fourth proportional to 48,771.04, 73,142.10 and 20,690.72 is: 31,029.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,771.04 : 73,142.10 = 20,690.72 : x
  2. Step 2: Convert to fraction form
    48,771.04/73,142.10 = 20,690.72/x
  3. Step 3: Cross multiply
    48,771.04x = 73,142.10 × 20,690.72
  4. Step 4: Simplify right side
    48,771.04x = 1,513,362,711.31
  5. Step 5: Solve for x
    x = 1,513,362,711.31/48,771.04
  6. Step 6: Final answer
    x = 31,029.95

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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.