Home / 65,533.78-90,433.96-40,082.77

Finding the Fourth Proportional to 65,533.78, 90,433.96 and 40,082.77

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Solution

The fourth proportional to 65,533.78, 90,433.96 and 40,082.77 is: 55,312.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,533.78 : 90,433.96 = 40,082.77 : x
  2. Step 2: Convert to fraction form
    65,533.78/90,433.96 = 40,082.77/x
  3. Step 3: Cross multiply
    65,533.78x = 90,433.96 × 40,082.77
  4. Step 4: Simplify right side
    65,533.78x = 3,624,843,618.87
  5. Step 5: Solve for x
    x = 3,624,843,618.87/65,533.78
  6. Step 6: Final answer
    x = 55,312.60

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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.