Home / 45,981.60-68,972.40-40,149.60

Finding the Fourth Proportional to 45,981.60, 68,972.40 and 40,149.60

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Solution

The fourth proportional to 45,981.60, 68,972.40 and 40,149.60 is: 60,224.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,981.60 : 68,972.40 = 40,149.60 : x
  2. Step 2: Convert to fraction form
    45,981.60/68,972.40 = 40,149.60/x
  3. Step 3: Cross multiply
    45,981.60x = 68,972.40 × 40,149.60
  4. Step 4: Simplify right side
    45,981.60x = 2,769,214,271.04
  5. Step 5: Solve for x
    x = 2,769,214,271.04/45,981.60
  6. Step 6: Final answer
    x = 60,224.40

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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.