Home / 78,741.62-108,632.42-48,474.35

Finding the Fourth Proportional to 78,741.62, 108,632.42 and 48,474.35

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Solution

The fourth proportional to 78,741.62, 108,632.42 and 48,474.35 is: 66,875.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,741.62 : 108,632.42 = 48,474.35 : x
  2. Step 2: Convert to fraction form
    78,741.62/108,632.42 = 48,474.35/x
  3. Step 3: Cross multiply
    78,741.62x = 108,632.42 × 48,474.35
  4. Step 4: Simplify right side
    78,741.62x = 5,265,885,615.71
  5. Step 5: Solve for x
    x = 5,265,885,615.71/78,741.62
  6. Step 6: Final answer
    x = 66,875.51

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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.