Home / 92,420.22-138,615.87-30,090.30

Finding the Fourth Proportional to 92,420.22, 138,615.87 and 30,090.30

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Solution

The fourth proportional to 92,420.22, 138,615.87 and 30,090.30 is: 45,130.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,420.22 : 138,615.87 = 30,090.30 : x
  2. Step 2: Convert to fraction form
    92,420.22/138,615.87 = 30,090.30/x
  3. Step 3: Cross multiply
    92,420.22x = 138,615.87 × 30,090.30
  4. Step 4: Simplify right side
    92,420.22x = 4,170,993,113.06
  5. Step 5: Solve for x
    x = 4,170,993,113.06/92,420.22
  6. Step 6: Final answer
    x = 45,130.74

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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.