Home / 79,118.10-109,155.96-45,102.08

Finding the Fourth Proportional to 79,118.10, 109,155.96 and 45,102.08

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Solution

The fourth proportional to 79,118.10, 109,155.96 and 45,102.08 is: 62,225.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,118.10 : 109,155.96 = 45,102.08 : x
  2. Step 2: Convert to fraction form
    79,118.10/109,155.96 = 45,102.08/x
  3. Step 3: Cross multiply
    79,118.10x = 109,155.96 × 45,102.08
  4. Step 4: Simplify right side
    79,118.10x = 4,923,160,294.62
  5. Step 5: Solve for x
    x = 4,923,160,294.62/79,118.10
  6. Step 6: Final answer
    x = 62,225.46

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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.