Home / 55,172.16-76,066.56-40,086.72

Finding the Fourth Proportional to 55,172.16, 76,066.56 and 40,086.72

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Solution

The fourth proportional to 55,172.16, 76,066.56 and 40,086.72 is: 55,268.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,172.16 : 76,066.56 = 40,086.72 : x
  2. Step 2: Convert to fraction form
    55,172.16/76,066.56 = 40,086.72/x
  3. Step 3: Cross multiply
    55,172.16x = 76,066.56 × 40,086.72
  4. Step 4: Simplify right side
    55,172.16x = 3,049,258,892.08
  5. Step 5: Solve for x
    x = 3,049,258,892.08/55,172.16
  6. Step 6: Final answer
    x = 55,268.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.