Home / 61,931.44-85,500.84-40,772.23

Finding the Fourth Proportional to 61,931.44, 85,500.84 and 40,772.23

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Solution

The fourth proportional to 61,931.44, 85,500.84 and 40,772.23 is: 56,289.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,931.44 : 85,500.84 = 40,772.23 : x
  2. Step 2: Convert to fraction form
    61,931.44/85,500.84 = 40,772.23/x
  3. Step 3: Cross multiply
    61,931.44x = 85,500.84 × 40,772.23
  4. Step 4: Simplify right side
    61,931.44x = 3,486,059,913.67
  5. Step 5: Solve for x
    x = 3,486,059,913.67/61,931.44
  6. Step 6: Final answer
    x = 56,289.02

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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.