Home / 86,689.60-119,513.04-54,842.56

Finding the Fourth Proportional to 86,689.60, 119,513.04 and 54,842.56

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Solution

The fourth proportional to 86,689.60, 119,513.04 and 54,842.56 is: 75,607.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,689.60 : 119,513.04 = 54,842.56 : x
  2. Step 2: Convert to fraction form
    86,689.60/119,513.04 = 54,842.56/x
  3. Step 3: Cross multiply
    86,689.60x = 119,513.04 × 54,842.56
  4. Step 4: Simplify right side
    86,689.60x = 6,554,401,066.98
  5. Step 5: Solve for x
    x = 6,554,401,066.98/86,689.60
  6. Step 6: Final answer
    x = 75,607.70

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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.