Home / 70,828.30-106,390.07-59,756.61

Finding the Fourth Proportional to 70,828.30, 106,390.07 and 59,756.61

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Solution

The fourth proportional to 70,828.30, 106,390.07 and 59,756.61 is: 89,759.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,828.30 : 106,390.07 = 59,756.61 : x
  2. Step 2: Convert to fraction form
    70,828.30/106,390.07 = 59,756.61/x
  3. Step 3: Cross multiply
    70,828.30x = 106,390.07 × 59,756.61
  4. Step 4: Simplify right side
    70,828.30x = 6,357,509,920.86
  5. Step 5: Solve for x
    x = 6,357,509,920.86/70,828.30
  6. Step 6: Final answer
    x = 89,759.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.