Home / 57,005.20-85,410.60-47,090.80

Finding the Fourth Proportional to 57,005.20, 85,410.60 and 47,090.80

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Solution

The fourth proportional to 57,005.20, 85,410.60 and 47,090.80 is: 70,555.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,005.20 : 85,410.60 = 47,090.80 : x
  2. Step 2: Convert to fraction form
    57,005.20/85,410.60 = 47,090.80/x
  3. Step 3: Cross multiply
    57,005.20x = 85,410.60 × 47,090.80
  4. Step 4: Simplify right side
    57,005.20x = 4,022,053,482.48
  5. Step 5: Solve for x
    x = 4,022,053,482.48/57,005.20
  6. Step 6: Final answer
    x = 70,555.91

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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.