Home / 83,634.49-115,437.72-51,785.29

Finding the Fourth Proportional to 83,634.49, 115,437.72 and 51,785.29

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Solution

The fourth proportional to 83,634.49, 115,437.72 and 51,785.29 is: 71,477.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,634.49 : 115,437.72 = 51,785.29 : x
  2. Step 2: Convert to fraction form
    83,634.49/115,437.72 = 51,785.29/x
  3. Step 3: Cross multiply
    83,634.49x = 115,437.72 × 51,785.29
  4. Step 4: Simplify right side
    83,634.49x = 5,977,975,807.14
  5. Step 5: Solve for x
    x = 5,977,975,807.14/83,634.49
  6. Step 6: Final answer
    x = 71,477.40

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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.