Home / 65,424.60-90,286.38-37,130.76

Finding the Fourth Proportional to 65,424.60, 90,286.38 and 37,130.76

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Solution

The fourth proportional to 65,424.60, 90,286.38 and 37,130.76 is: 51,240.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,424.60 : 90,286.38 = 37,130.76 : x
  2. Step 2: Convert to fraction form
    65,424.60/90,286.38 = 37,130.76/x
  3. Step 3: Cross multiply
    65,424.60x = 90,286.38 × 37,130.76
  4. Step 4: Simplify right side
    65,424.60x = 3,352,401,907.05
  5. Step 5: Solve for x
    x = 3,352,401,907.05/65,424.60
  6. Step 6: Final answer
    x = 51,240.69

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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.