Home / 105,584.40-145,706.50-57,839.46

Finding the Fourth Proportional to 105,584.40, 145,706.50 and 57,839.46

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Solution

The fourth proportional to 105,584.40, 145,706.50 and 57,839.46 is: 79,818.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,584.40 : 145,706.50 = 57,839.46 : x
  2. Step 2: Convert to fraction form
    105,584.40/145,706.50 = 57,839.46/x
  3. Step 3: Cross multiply
    105,584.40x = 145,706.50 × 57,839.46
  4. Step 4: Simplify right side
    105,584.40x = 8,427,585,278.49
  5. Step 5: Solve for x
    x = 8,427,585,278.49/105,584.40
  6. Step 6: Final answer
    x = 79,818.47

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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.