Home / 109,035.72-163,575.54-38,913.20

Finding the Fourth Proportional to 109,035.72, 163,575.54 and 38,913.20

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Solution

The fourth proportional to 109,035.72, 163,575.54 and 38,913.20 is: 58,377.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,035.72 : 163,575.54 = 38,913.20 : x
  2. Step 2: Convert to fraction form
    109,035.72/163,575.54 = 38,913.20/x
  3. Step 3: Cross multiply
    109,035.72x = 163,575.54 × 38,913.20
  4. Step 4: Simplify right side
    109,035.72x = 6,365,247,703.13
  5. Step 5: Solve for x
    x = 6,365,247,703.13/109,035.72
  6. Step 6: Final answer
    x = 58,377.64

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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.