Home / 85,670.01-128,420.24-40,612.22

Finding the Fourth Proportional to 85,670.01, 128,420.24 and 40,612.22

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Solution

The fourth proportional to 85,670.01, 128,420.24 and 40,612.22 is: 60,878.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,670.01 : 128,420.24 = 40,612.22 : x
  2. Step 2: Convert to fraction form
    85,670.01/128,420.24 = 40,612.22/x
  3. Step 3: Cross multiply
    85,670.01x = 128,420.24 × 40,612.22
  4. Step 4: Simplify right side
    85,670.01x = 5,215,431,039.33
  5. Step 5: Solve for x
    x = 5,215,431,039.33/85,670.01
  6. Step 6: Final answer
    x = 60,878.14

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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.