Home / 65,278.16-90,083.64-36,989.24

Finding the Fourth Proportional to 65,278.16, 90,083.64 and 36,989.24

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Solution

The fourth proportional to 65,278.16, 90,083.64 and 36,989.24 is: 51,045.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,278.16 : 90,083.64 = 36,989.24 : x
  2. Step 2: Convert to fraction form
    65,278.16/90,083.64 = 36,989.24/x
  3. Step 3: Cross multiply
    65,278.16x = 90,083.64 × 36,989.24
  4. Step 4: Simplify right side
    65,278.16x = 3,332,125,380.03
  5. Step 5: Solve for x
    x = 3,332,125,380.03/65,278.16
  6. Step 6: Final answer
    x = 51,045.03

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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.