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Finding the Fourth Proportional to 86,486.83, 119,349.12 and 50,700.68

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Solution

The fourth proportional to 86,486.83, 119,349.12 and 50,700.68 is: 69,965.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,486.83 : 119,349.12 = 50,700.68 : x
  2. Step 2: Convert to fraction form
    86,486.83/119,349.12 = 50,700.68/x
  3. Step 3: Cross multiply
    86,486.83x = 119,349.12 × 50,700.68
  4. Step 4: Simplify right side
    86,486.83x = 6,051,080,817.90
  5. Step 5: Solve for x
    x = 6,051,080,817.90/86,486.83
  6. Step 6: Final answer
    x = 69,965.34

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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.