Home / 91,938.63-126,878.58-51,651.59

Finding the Fourth Proportional to 91,938.63, 126,878.58 and 51,651.59

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Solution

The fourth proportional to 91,938.63, 126,878.58 and 51,651.59 is: 71,281.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,938.63 : 126,878.58 = 51,651.59 : x
  2. Step 2: Convert to fraction form
    91,938.63/126,878.58 = 51,651.59/x
  3. Step 3: Cross multiply
    91,938.63x = 126,878.58 × 51,651.59
  4. Step 4: Simplify right side
    91,938.63x = 6,553,479,792.70
  5. Step 5: Solve for x
    x = 6,553,479,792.70/91,938.63
  6. Step 6: Final answer
    x = 71,281.02

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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.