Home / 109,679.81-164,519.74-39,559.12

Finding the Fourth Proportional to 109,679.81, 164,519.74 and 39,559.12

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Solution

The fourth proportional to 109,679.81, 164,519.74 and 39,559.12 is: 59,338.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,679.81 : 164,519.74 = 39,559.12 : x
  2. Step 2: Convert to fraction form
    109,679.81/164,519.74 = 39,559.12/x
  3. Step 3: Cross multiply
    109,679.81x = 164,519.74 × 39,559.12
  4. Step 4: Simplify right side
    109,679.81x = 6,508,255,775.18
  5. Step 5: Solve for x
    x = 6,508,255,775.18/109,679.81
  6. Step 6: Final answer
    x = 59,338.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.