Home / 91,973.34-126,925.76-51,690.78

Finding the Fourth Proportional to 91,973.34, 126,925.76 and 51,690.78

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Solution

The fourth proportional to 91,973.34, 126,925.76 and 51,690.78 is: 71,334.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,973.34 : 126,925.76 = 51,690.78 : x
  2. Step 2: Convert to fraction form
    91,973.34/126,925.76 = 51,690.78/x
  3. Step 3: Cross multiply
    91,973.34x = 126,925.76 × 51,690.78
  4. Step 4: Simplify right side
    91,973.34x = 6,560,891,278.04
  5. Step 5: Solve for x
    x = 6,560,891,278.04/91,973.34
  6. Step 6: Final answer
    x = 71,334.71

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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.