Home / 72,722.45-100,307.64-47,183.18

Finding the Fourth Proportional to 72,722.45, 100,307.64 and 47,183.18

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Solution

The fourth proportional to 72,722.45, 100,307.64 and 47,183.18 is: 65,080.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,722.45 : 100,307.64 = 47,183.18 : x
  2. Step 2: Convert to fraction form
    72,722.45/100,307.64 = 47,183.18/x
  3. Step 3: Cross multiply
    72,722.45x = 100,307.64 × 47,183.18
  4. Step 4: Simplify right side
    72,722.45x = 4,732,833,433.50
  5. Step 5: Solve for x
    x = 4,732,833,433.50/72,722.45
  6. Step 6: Final answer
    x = 65,080.78

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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.