Home / 105,087.94-145,024.55-59,772.45

Finding the Fourth Proportional to 105,087.94, 145,024.55 and 59,772.45

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Solution

The fourth proportional to 105,087.94, 145,024.55 and 59,772.45 is: 82,487.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,087.94 : 145,024.55 = 59,772.45 : x
  2. Step 2: Convert to fraction form
    105,087.94/145,024.55 = 59,772.45/x
  3. Step 3: Cross multiply
    105,087.94x = 145,024.55 × 59,772.45
  4. Step 4: Simplify right side
    105,087.94x = 8,668,471,639.66
  5. Step 5: Solve for x
    x = 8,668,471,639.66/105,087.94
  6. Step 6: Final answer
    x = 82,487.79

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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.