Home / 79,156.27-109,225.65-63,064.39

Finding the Fourth Proportional to 79,156.27, 109,225.65 and 63,064.39

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Solution

The fourth proportional to 79,156.27, 109,225.65 and 63,064.39 is: 87,020.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,156.27 : 109,225.65 = 63,064.39 : x
  2. Step 2: Convert to fraction form
    79,156.27/109,225.65 = 63,064.39/x
  3. Step 3: Cross multiply
    79,156.27x = 109,225.65 × 63,064.39
  4. Step 4: Simplify right side
    79,156.27x = 6,888,248,674.28
  5. Step 5: Solve for x
    x = 6,888,248,674.28/79,156.27
  6. Step 6: Final answer
    x = 87,020.89

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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.