Home / 57,132.09-85,698.27-19,693.08

Finding the Fourth Proportional to 57,132.09, 85,698.27 and 19,693.08

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Solution

The fourth proportional to 57,132.09, 85,698.27 and 19,693.08 is: 29,539.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,132.09 : 85,698.27 = 19,693.08 : x
  2. Step 2: Convert to fraction form
    57,132.09/85,698.27 = 19,693.08/x
  3. Step 3: Cross multiply
    57,132.09x = 85,698.27 × 19,693.08
  4. Step 4: Simplify right side
    57,132.09x = 1,687,662,886.97
  5. Step 5: Solve for x
    x = 1,687,662,886.97/57,132.09
  6. Step 6: Final answer
    x = 29,539.67

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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.