Home / 57,006.20-85,412.10-47,091.80

Finding the Fourth Proportional to 57,006.20, 85,412.10 and 47,091.80

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Solution

The fourth proportional to 57,006.20, 85,412.10 and 47,091.80 is: 70,557.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,006.20 : 85,412.10 = 47,091.80 : x
  2. Step 2: Convert to fraction form
    57,006.20/85,412.10 = 47,091.80/x
  3. Step 3: Cross multiply
    57,006.20x = 85,412.10 × 47,091.80
  4. Step 4: Simplify right side
    57,006.20x = 4,022,209,530.78
  5. Step 5: Solve for x
    x = 4,022,209,530.78/57,006.20
  6. Step 6: Final answer
    x = 70,557.40

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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.