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Finding the Fourth Proportional to 65,424.54, 90,288.04 and 36,749.25

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Solution

The fourth proportional to 65,424.54, 90,288.04 and 36,749.25 is: 50,715.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,424.54 : 90,288.04 = 36,749.25 : x
  2. Step 2: Convert to fraction form
    65,424.54/90,288.04 = 36,749.25/x
  3. Step 3: Cross multiply
    65,424.54x = 90,288.04 × 36,749.25
  4. Step 4: Simplify right side
    65,424.54x = 3,318,018,138.49
  5. Step 5: Solve for x
    x = 3,318,018,138.49/65,424.54
  6. Step 6: Final answer
    x = 50,715.20

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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.