Home / 83,383.08-115,080.15-51,136.98

Finding the Fourth Proportional to 83,383.08, 115,080.15 and 51,136.98

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Solution

The fourth proportional to 83,383.08, 115,080.15 and 51,136.98 is: 70,576.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,383.08 : 115,080.15 = 51,136.98 : x
  2. Step 2: Convert to fraction form
    83,383.08/115,080.15 = 51,136.98/x
  3. Step 3: Cross multiply
    83,383.08x = 115,080.15 × 51,136.98
  4. Step 4: Simplify right side
    83,383.08x = 5,884,851,328.95
  5. Step 5: Solve for x
    x = 5,884,851,328.95/83,383.08
  6. Step 6: Final answer
    x = 70,576.08

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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.