Home / 76,973.60-115,579.20-41,981.60

Finding the Fourth Proportional to 76,973.60, 115,579.20 and 41,981.60

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Solution

The fourth proportional to 76,973.60, 115,579.20 and 41,981.60 is: 63,037.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,973.60 : 115,579.20 = 41,981.60 : x
  2. Step 2: Convert to fraction form
    76,973.60/115,579.20 = 41,981.60/x
  3. Step 3: Cross multiply
    76,973.60x = 115,579.20 × 41,981.60
  4. Step 4: Simplify right side
    76,973.60x = 4,852,199,742.72
  5. Step 5: Solve for x
    x = 4,852,199,742.72/76,973.60
  6. Step 6: Final answer
    x = 63,037.19

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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.