Home / 79,106.34-109,145.12-45,102.42

Finding the Fourth Proportional to 79,106.34, 109,145.12 and 45,102.42

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Solution

The fourth proportional to 79,106.34, 109,145.12 and 45,102.42 is: 62,229.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,106.34 : 109,145.12 = 45,102.42 : x
  2. Step 2: Convert to fraction form
    79,106.34/109,145.12 = 45,102.42/x
  3. Step 3: Cross multiply
    79,106.34x = 109,145.12 × 45,102.42
  4. Step 4: Simplify right side
    79,106.34x = 4,922,709,043.19
  5. Step 5: Solve for x
    x = 4,922,709,043.19/79,106.34
  6. Step 6: Final answer
    x = 62,229.01

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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.