Home / 91,966.32-126,919.35-51,135.03

Finding the Fourth Proportional to 91,966.32, 126,919.35 and 51,135.03

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Solution

The fourth proportional to 91,966.32, 126,919.35 and 51,135.03 is: 70,569.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,966.32 : 126,919.35 = 51,135.03 : x
  2. Step 2: Convert to fraction form
    91,966.32/126,919.35 = 51,135.03/x
  3. Step 3: Cross multiply
    91,966.32x = 126,919.35 × 51,135.03
  4. Step 4: Simplify right side
    91,966.32x = 6,490,024,769.83
  5. Step 5: Solve for x
    x = 6,490,024,769.83/91,966.32
  6. Step 6: Final answer
    x = 70,569.58

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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.