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Finding the Fourth Proportional to 100,672.61, 151,009.32 and 30,552.53

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Solution

The fourth proportional to 100,672.61, 151,009.32 and 30,552.53 is: 45,828.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,672.61 : 151,009.32 = 30,552.53 : x
  2. Step 2: Convert to fraction form
    100,672.61/151,009.32 = 30,552.53/x
  3. Step 3: Cross multiply
    100,672.61x = 151,009.32 × 30,552.53
  4. Step 4: Simplify right side
    100,672.61x = 4,613,716,779.58
  5. Step 5: Solve for x
    x = 4,613,716,779.58/100,672.61
  6. Step 6: Final answer
    x = 45,828.92

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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.