Home / 78,848.96-108,835.68-48,643.70

Finding the Fourth Proportional to 78,848.96, 108,835.68 and 48,643.70

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Solution

The fourth proportional to 78,848.96, 108,835.68 and 48,643.70 is: 67,143.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,848.96 : 108,835.68 = 48,643.70 : x
  2. Step 2: Convert to fraction form
    78,848.96/108,835.68 = 48,643.70/x
  3. Step 3: Cross multiply
    78,848.96x = 108,835.68 × 48,643.70
  4. Step 4: Simplify right side
    78,848.96x = 5,294,170,167.22
  5. Step 5: Solve for x
    x = 5,294,170,167.22/78,848.96
  6. Step 6: Final answer
    x = 67,143.18

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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.