Home / 75,071.61-103,601.16-43,239.96

Finding the Fourth Proportional to 75,071.61, 103,601.16 and 43,239.96

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Solution

The fourth proportional to 75,071.61, 103,601.16 and 43,239.96 is: 59,672.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,071.61 : 103,601.16 = 43,239.96 : x
  2. Step 2: Convert to fraction form
    75,071.61/103,601.16 = 43,239.96/x
  3. Step 3: Cross multiply
    75,071.61x = 103,601.16 × 43,239.96
  4. Step 4: Simplify right side
    75,071.61x = 4,479,710,014.35
  5. Step 5: Solve for x
    x = 4,479,710,014.35/75,071.61
  6. Step 6: Final answer
    x = 59,672.49

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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.