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Finding the Fourth Proportional to 86,394.62, 119,210.12 and 48,145.79

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Solution

The fourth proportional to 86,394.62, 119,210.12 and 48,145.79 is: 66,433.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,394.62 : 119,210.12 = 48,145.79 : x
  2. Step 2: Convert to fraction form
    86,394.62/119,210.12 = 48,145.79/x
  3. Step 3: Cross multiply
    86,394.62x = 119,210.12 × 48,145.79
  4. Step 4: Simplify right side
    86,394.62x = 5,739,465,403.39
  5. Step 5: Solve for x
    x = 5,739,465,403.39/86,394.62
  6. Step 6: Final answer
    x = 66,433.13

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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.