Home / 65,161.40-89,908.79-49,045.64

Finding the Fourth Proportional to 65,161.40, 89,908.79 and 49,045.64

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Solution

The fourth proportional to 65,161.40, 89,908.79 and 49,045.64 is: 67,672.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,161.40 : 89,908.79 = 49,045.64 : x
  2. Step 2: Convert to fraction form
    65,161.40/89,908.79 = 49,045.64/x
  3. Step 3: Cross multiply
    65,161.40x = 89,908.79 × 49,045.64
  4. Step 4: Simplify right side
    65,161.40x = 4,409,633,452.40
  5. Step 5: Solve for x
    x = 4,409,633,452.40/65,161.40
  6. Step 6: Final answer
    x = 67,672.48

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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.