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Finding the Fourth Proportional to 86,998.79, 120,066.75 and 48,764.83

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Solution

The fourth proportional to 86,998.79, 120,066.75 and 48,764.83 is: 67,300.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,998.79 : 120,066.75 = 48,764.83 : x
  2. Step 2: Convert to fraction form
    86,998.79/120,066.75 = 48,764.83/x
  3. Step 3: Cross multiply
    86,998.79x = 120,066.75 × 48,764.83
  4. Step 4: Simplify right side
    86,998.79x = 5,855,034,352.24
  5. Step 5: Solve for x
    x = 5,855,034,352.24/86,998.79
  6. Step 6: Final answer
    x = 67,300.19

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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.