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Finding the Fourth Proportional to 105,510.35, 145,604.49 and 57,766.73

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Solution

The fourth proportional to 105,510.35, 145,604.49 and 57,766.73 is: 79,718.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,510.35 : 145,604.49 = 57,766.73 : x
  2. Step 2: Convert to fraction form
    105,510.35/145,604.49 = 57,766.73/x
  3. Step 3: Cross multiply
    105,510.35x = 145,604.49 × 57,766.73
  4. Step 4: Simplify right side
    105,510.35x = 8,411,095,260.62
  5. Step 5: Solve for x
    x = 8,411,095,260.62/105,510.35
  6. Step 6: Final answer
    x = 79,718.20

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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.