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Finding the Fourth Proportional to 86,774.75, 119,749.16 and 47,030.75

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Solution

The fourth proportional to 86,774.75, 119,749.16 and 47,030.75 is: 64,902.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,774.75 : 119,749.16 = 47,030.75 : x
  2. Step 2: Convert to fraction form
    86,774.75/119,749.16 = 47,030.75/x
  3. Step 3: Cross multiply
    86,774.75x = 119,749.16 × 47,030.75
  4. Step 4: Simplify right side
    86,774.75x = 5,631,892,806.67
  5. Step 5: Solve for x
    x = 5,631,892,806.67/86,774.75
  6. Step 6: Final answer
    x = 64,902.44

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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.