Home / 86,918.94-119,943.99-53,378.46

Finding the Fourth Proportional to 86,918.94, 119,943.99 and 53,378.46

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Solution

The fourth proportional to 86,918.94, 119,943.99 and 53,378.46 is: 73,659.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,918.94 : 119,943.99 = 53,378.46 : x
  2. Step 2: Convert to fraction form
    86,918.94/119,943.99 = 53,378.46/x
  3. Step 3: Cross multiply
    86,918.94x = 119,943.99 × 53,378.46
  4. Step 4: Simplify right side
    86,918.94x = 6,402,425,472.46
  5. Step 5: Solve for x
    x = 6,402,425,472.46/86,918.94
  6. Step 6: Final answer
    x = 73,659.73

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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.