Home / 92,011.16-126,980.40-51,179.60

Finding the Fourth Proportional to 92,011.16, 126,980.40 and 51,179.60

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Solution

The fourth proportional to 92,011.16, 126,980.40 and 51,179.60 is: 70,630.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,011.16 : 126,980.40 = 51,179.60 : x
  2. Step 2: Convert to fraction form
    92,011.16/126,980.40 = 51,179.60/x
  3. Step 3: Cross multiply
    92,011.16x = 126,980.40 × 51,179.60
  4. Step 4: Simplify right side
    92,011.16x = 6,498,806,079.84
  5. Step 5: Solve for x
    x = 6,498,806,079.84/92,011.16
  6. Step 6: Final answer
    x = 70,630.63

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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.