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Finding the Fourth Proportional to 86,808, 119,795.04 and 47,064

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Solution

The fourth proportional to 86,808, 119,795.04 and 47,064 is: 64,948.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,808 : 119,795.04 = 47,064 : x
  2. Step 2: Convert to fraction form
    86,808/119,795.04 = 47,064/x
  3. Step 3: Cross multiply
    86,808x = 119,795.04 × 47,064
  4. Step 4: Simplify right side
    86,808x = 5,638,033,762.56
  5. Step 5: Solve for x
    x = 5,638,033,762.56/86,808
  6. Step 6: Final answer
    x = 64,948.32

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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.