Home / 78,933.18-118,395.90-29,009.46

Finding the Fourth Proportional to 78,933.18, 118,395.90 and 29,009.46

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Solution

The fourth proportional to 78,933.18, 118,395.90 and 29,009.46 is: 43,512.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,933.18 : 118,395.90 = 29,009.46 : x
  2. Step 2: Convert to fraction form
    78,933.18/118,395.90 = 29,009.46/x
  3. Step 3: Cross multiply
    78,933.18x = 118,395.90 × 29,009.46
  4. Step 4: Simplify right side
    78,933.18x = 3,434,601,125.21
  5. Step 5: Solve for x
    x = 3,434,601,125.21/78,933.18
  6. Step 6: Final answer
    x = 43,512.77

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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.