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Finding the Fourth Proportional to 86,858.76, 119,823.54 and 50,560.20

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Solution

The fourth proportional to 86,858.76, 119,823.54 and 50,560.20 is: 69,748.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,858.76 : 119,823.54 = 50,560.20 : x
  2. Step 2: Convert to fraction form
    86,858.76/119,823.54 = 50,560.20/x
  3. Step 3: Cross multiply
    86,858.76x = 119,823.54 × 50,560.20
  4. Step 4: Simplify right side
    86,858.76x = 6,058,302,147.11
  5. Step 5: Solve for x
    x = 6,058,302,147.11/86,858.76
  6. Step 6: Final answer
    x = 69,748.89

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1.5x scale

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.