Home / 57,667.20-86,500.80-54,459.60

Finding the Fourth Proportional to 57,667.20, 86,500.80 and 54,459.60

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Solution

The fourth proportional to 57,667.20, 86,500.80 and 54,459.60 is: 81,689.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,667.20 : 86,500.80 = 54,459.60 : x
  2. Step 2: Convert to fraction form
    57,667.20/86,500.80 = 54,459.60/x
  3. Step 3: Cross multiply
    57,667.20x = 86,500.80 × 54,459.60
  4. Step 4: Simplify right side
    57,667.20x = 4,710,798,967.68
  5. Step 5: Solve for x
    x = 4,710,798,967.68/57,667.20
  6. Step 6: Final answer
    x = 81,689.40

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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.