Home / 77,875.20-107,203.50-69,914.52

Finding the Fourth Proportional to 77,875.20, 107,203.50 and 69,914.52

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Solution

The fourth proportional to 77,875.20, 107,203.50 and 69,914.52 is: 96,244.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,875.20 : 107,203.50 = 69,914.52 : x
  2. Step 2: Convert to fraction form
    77,875.20/107,203.50 = 69,914.52/x
  3. Step 3: Cross multiply
    77,875.20x = 107,203.50 × 69,914.52
  4. Step 4: Simplify right side
    77,875.20x = 7,495,081,244.82
  5. Step 5: Solve for x
    x = 7,495,081,244.82/77,875.20
  6. Step 6: Final answer
    x = 96,244.78

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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.