Home / 78,434.02-117,665.61-25,845.58

Finding the Fourth Proportional to 78,434.02, 117,665.61 and 25,845.58

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Solution

The fourth proportional to 78,434.02, 117,665.61 and 25,845.58 is: 38,773.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,434.02 : 117,665.61 = 25,845.58 : x
  2. Step 2: Convert to fraction form
    78,434.02/117,665.61 = 25,845.58/x
  3. Step 3: Cross multiply
    78,434.02x = 117,665.61 × 25,845.58
  4. Step 4: Simplify right side
    78,434.02x = 3,041,135,936.50
  5. Step 5: Solve for x
    x = 3,041,135,936.50/78,434.02
  6. Step 6: Final answer
    x = 38,773.17

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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.