Home / 57,691.28-86,547.60-18,258.32

Finding the Fourth Proportional to 57,691.28, 86,547.60 and 18,258.32

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Solution

The fourth proportional to 57,691.28, 86,547.60 and 18,258.32 is: 27,390.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,691.28 : 86,547.60 = 18,258.32 : x
  2. Step 2: Convert to fraction form
    57,691.28/86,547.60 = 18,258.32/x
  3. Step 3: Cross multiply
    57,691.28x = 86,547.60 × 18,258.32
  4. Step 4: Simplify right side
    57,691.28x = 1,580,213,776.03
  5. Step 5: Solve for x
    x = 1,580,213,776.03/57,691.28
  6. Step 6: Final answer
    x = 27,390.86

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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.