Home / 82,706.20-124,124.10-38,338.45

Finding the Fourth Proportional to 82,706.20, 124,124.10 and 38,338.45

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Solution

The fourth proportional to 82,706.20, 124,124.10 and 38,338.45 is: 57,537.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,706.20 : 124,124.10 = 38,338.45 : x
  2. Step 2: Convert to fraction form
    82,706.20/124,124.10 = 38,338.45/x
  3. Step 3: Cross multiply
    82,706.20x = 124,124.10 × 38,338.45
  4. Step 4: Simplify right side
    82,706.20x = 4,758,725,601.65
  5. Step 5: Solve for x
    x = 4,758,725,601.65/82,706.20
  6. Step 6: Final answer
    x = 57,537.71

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1.5x scale

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.