Home / 86,901.56-119,882.40-51,089.84

Finding the Fourth Proportional to 86,901.56, 119,882.40 and 51,089.84

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Solution

The fourth proportional to 86,901.56, 119,882.40 and 51,089.84 is: 70,479.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,901.56 : 119,882.40 = 51,089.84 : x
  2. Step 2: Convert to fraction form
    86,901.56/119,882.40 = 51,089.84/x
  3. Step 3: Cross multiply
    86,901.56x = 119,882.40 × 51,089.84
  4. Step 4: Simplify right side
    86,901.56x = 6,124,772,634.82
  5. Step 5: Solve for x
    x = 6,124,772,634.82/86,901.56
  6. Step 6: Final answer
    x = 70,479.43

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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.