Home / 78,444.82-108,254.70-42,634.84

Finding the Fourth Proportional to 78,444.82, 108,254.70 and 42,634.84

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Solution

The fourth proportional to 78,444.82, 108,254.70 and 42,634.84 is: 58,836.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,444.82 : 108,254.70 = 42,634.84 : x
  2. Step 2: Convert to fraction form
    78,444.82/108,254.70 = 42,634.84/x
  3. Step 3: Cross multiply
    78,444.82x = 108,254.70 × 42,634.84
  4. Step 4: Simplify right side
    78,444.82x = 4,615,421,813.75
  5. Step 5: Solve for x
    x = 4,615,421,813.75/78,444.82
  6. Step 6: Final answer
    x = 58,836.54

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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.