Home / 77,341.50-115,994.43-43,622.28

Finding the Fourth Proportional to 77,341.50, 115,994.43 and 43,622.28

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Solution

The fourth proportional to 77,341.50, 115,994.43 and 43,622.28 is: 65,423.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,341.50 : 115,994.43 = 43,622.28 : x
  2. Step 2: Convert to fraction form
    77,341.50/115,994.43 = 43,622.28/x
  3. Step 3: Cross multiply
    77,341.50x = 115,994.43 × 43,622.28
  4. Step 4: Simplify right side
    77,341.50x = 5,059,941,503.90
  5. Step 5: Solve for x
    x = 5,059,941,503.90/77,341.50
  6. Step 6: Final answer
    x = 65,423.37

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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.