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Finding the Fourth Proportional to 90,152.64, 124,410.24 and 50,408.64

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Solution

The fourth proportional to 90,152.64, 124,410.24 and 50,408.64 is: 69,563.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,152.64 : 124,410.24 = 50,408.64 : x
  2. Step 2: Convert to fraction form
    90,152.64/124,410.24 = 50,408.64/x
  3. Step 3: Cross multiply
    90,152.64x = 124,410.24 × 50,408.64
  4. Step 4: Simplify right side
    90,152.64x = 6,271,351,000.47
  5. Step 5: Solve for x
    x = 6,271,351,000.47/90,152.64
  6. Step 6: Final answer
    x = 69,563.70

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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.