Home / 57,709.60-86,555.72-18,261.58

Finding the Fourth Proportional to 57,709.60, 86,555.72 and 18,261.58

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Solution

The fourth proportional to 57,709.60, 86,555.72 and 18,261.58 is: 27,389.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,709.60 : 86,555.72 = 18,261.58 : x
  2. Step 2: Convert to fraction form
    57,709.60/86,555.72 = 18,261.58/x
  3. Step 3: Cross multiply
    57,709.60x = 86,555.72 × 18,261.58
  4. Step 4: Simplify right side
    57,709.60x = 1,580,643,681.15
  5. Step 5: Solve for x
    x = 1,580,643,681.15/57,709.60
  6. Step 6: Final answer
    x = 27,389.62

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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.