Home / 78,956.24-118,481-29,071.36

Finding the Fourth Proportional to 78,956.24, 118,481 and 29,071.36

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Solution

The fourth proportional to 78,956.24, 118,481 and 29,071.36 is: 43,624.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,956.24 : 118,481 = 29,071.36 : x
  2. Step 2: Convert to fraction form
    78,956.24/118,481 = 29,071.36/x
  3. Step 3: Cross multiply
    78,956.24x = 118,481 × 29,071.36
  4. Step 4: Simplify right side
    78,956.24x = 3,444,403,804.16
  5. Step 5: Solve for x
    x = 3,444,403,804.16/78,956.24
  6. Step 6: Final answer
    x = 43,624.21

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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.