Home / 78,527.85-108,370.26-42,719.82

Finding the Fourth Proportional to 78,527.85, 108,370.26 and 42,719.82

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Solution

The fourth proportional to 78,527.85, 108,370.26 and 42,719.82 is: 58,954.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,527.85 : 108,370.26 = 42,719.82 : x
  2. Step 2: Convert to fraction form
    78,527.85/108,370.26 = 42,719.82/x
  3. Step 3: Cross multiply
    78,527.85x = 108,370.26 × 42,719.82
  4. Step 4: Simplify right side
    78,527.85x = 4,629,558,000.55
  5. Step 5: Solve for x
    x = 4,629,558,000.55/78,527.85
  6. Step 6: Final answer
    x = 58,954.35

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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.