Home / 77,345.10-115,820.76-50,969.88

Finding the Fourth Proportional to 77,345.10, 115,820.76 and 50,969.88

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Solution

The fourth proportional to 77,345.10, 115,820.76 and 50,969.88 is: 76,325.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,345.10 : 115,820.76 = 50,969.88 : x
  2. Step 2: Convert to fraction form
    77,345.10/115,820.76 = 50,969.88/x
  3. Step 3: Cross multiply
    77,345.10x = 115,820.76 × 50,969.88
  4. Step 4: Simplify right side
    77,345.10x = 5,903,370,238.71
  5. Step 5: Solve for x
    x = 5,903,370,238.71/77,345.10
  6. Step 6: Final answer
    x = 76,325.07

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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.