Home / 78,564.60-108,391.14-46,732.68

Finding the Fourth Proportional to 78,564.60, 108,391.14 and 46,732.68

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Solution

The fourth proportional to 78,564.60, 108,391.14 and 46,732.68 is: 64,474.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,564.60 : 108,391.14 = 46,732.68 : x
  2. Step 2: Convert to fraction form
    78,564.60/108,391.14 = 46,732.68/x
  3. Step 3: Cross multiply
    78,564.60x = 108,391.14 × 46,732.68
  4. Step 4: Simplify right side
    78,564.60x = 5,065,408,460.46
  5. Step 5: Solve for x
    x = 5,065,408,460.46/78,564.60
  6. Step 6: Final answer
    x = 64,474.44

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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.