Home / 79,141.07-109,225.11-45,141.77

Finding the Fourth Proportional to 79,141.07, 109,225.11 and 45,141.77

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Solution

The fourth proportional to 79,141.07, 109,225.11 and 45,141.77 is: 62,301.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,141.07 : 109,225.11 = 45,141.77 : x
  2. Step 2: Convert to fraction form
    79,141.07/109,225.11 = 45,141.77/x
  3. Step 3: Cross multiply
    79,141.07x = 109,225.11 × 45,141.77
  4. Step 4: Simplify right side
    79,141.07x = 4,930,614,247.72
  5. Step 5: Solve for x
    x = 4,930,614,247.72/79,141.07
  6. Step 6: Final answer
    x = 62,301.59

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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.