Home / 60,090.18-90,137.34-20,646.96

Finding the Fourth Proportional to 60,090.18, 90,137.34 and 20,646.96

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Solution

The fourth proportional to 60,090.18, 90,137.34 and 20,646.96 is: 30,971.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,090.18 : 90,137.34 = 20,646.96 : x
  2. Step 2: Convert to fraction form
    60,090.18/90,137.34 = 20,646.96/x
  3. Step 3: Cross multiply
    60,090.18x = 90,137.34 × 20,646.96
  4. Step 4: Simplify right side
    60,090.18x = 1,861,062,053.49
  5. Step 5: Solve for x
    x = 1,861,062,053.49/60,090.18
  6. Step 6: Final answer
    x = 30,971.15

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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.