Home / 86,428.41-119,279.03-52,445.50

Finding the Fourth Proportional to 86,428.41, 119,279.03 and 52,445.50

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Solution

The fourth proportional to 86,428.41, 119,279.03 and 52,445.50 is: 72,379.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,428.41 : 119,279.03 = 52,445.50 : x
  2. Step 2: Convert to fraction form
    86,428.41/119,279.03 = 52,445.50/x
  3. Step 3: Cross multiply
    86,428.41x = 119,279.03 × 52,445.50
  4. Step 4: Simplify right side
    86,428.41x = 6,255,648,367.87
  5. Step 5: Solve for x
    x = 6,255,648,367.87/86,428.41
  6. Step 6: Final answer
    x = 72,379.54

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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.