Home / 57,528.72-86,108.40-30,837.60

Finding the Fourth Proportional to 57,528.72, 86,108.40 and 30,837.60

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Solution

The fourth proportional to 57,528.72, 86,108.40 and 30,837.60 is: 46,157.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,528.72 : 86,108.40 = 30,837.60 : x
  2. Step 2: Convert to fraction form
    57,528.72/86,108.40 = 30,837.60/x
  3. Step 3: Cross multiply
    57,528.72x = 86,108.40 × 30,837.60
  4. Step 4: Simplify right side
    57,528.72x = 2,655,376,395.84
  5. Step 5: Solve for x
    x = 2,655,376,395.84/57,528.72
  6. Step 6: Final answer
    x = 46,157.40

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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.