Home / 57,968.16-86,809.68-28,290.30

Finding the Fourth Proportional to 57,968.16, 86,809.68 and 28,290.30

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Solution

The fourth proportional to 57,968.16, 86,809.68 and 28,290.30 is: 42,365.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,968.16 : 86,809.68 = 28,290.30 : x
  2. Step 2: Convert to fraction form
    57,968.16/86,809.68 = 28,290.30/x
  3. Step 3: Cross multiply
    57,968.16x = 86,809.68 × 28,290.30
  4. Step 4: Simplify right side
    57,968.16x = 2,455,871,890.10
  5. Step 5: Solve for x
    x = 2,455,871,890.10/57,968.16
  6. Step 6: Final answer
    x = 42,365.88

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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.