Home / 83,954.34-125,931.36-57,579.12

Finding the Fourth Proportional to 83,954.34, 125,931.36 and 57,579.12

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Solution

The fourth proportional to 83,954.34, 125,931.36 and 57,579.12 is: 86,368.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,954.34 : 125,931.36 = 57,579.12 : x
  2. Step 2: Convert to fraction form
    83,954.34/125,931.36 = 57,579.12/x
  3. Step 3: Cross multiply
    83,954.34x = 125,931.36 × 57,579.12
  4. Step 4: Simplify right side
    83,954.34x = 7,251,016,889.20
  5. Step 5: Solve for x
    x = 7,251,016,889.20/83,954.34
  6. Step 6: Final answer
    x = 86,368.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.