Home / 55,680.06-76,839.48-30,527.94

Finding the Fourth Proportional to 55,680.06, 76,839.48 and 30,527.94

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Solution

The fourth proportional to 55,680.06, 76,839.48 and 30,527.94 is: 42,129.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,680.06 : 76,839.48 = 30,527.94 : x
  2. Step 2: Convert to fraction form
    55,680.06/76,839.48 = 30,527.94/x
  3. Step 3: Cross multiply
    55,680.06x = 76,839.48 × 30,527.94
  4. Step 4: Simplify right side
    55,680.06x = 2,345,751,035.07
  5. Step 5: Solve for x
    x = 2,345,751,035.07/55,680.06
  6. Step 6: Final answer
    x = 42,129.10

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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.