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Finding the Fourth Proportional to 55,130.84, 82,601.15 and 30,188.84

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Solution

The fourth proportional to 55,130.84, 82,601.15 and 30,188.84 is: 45,231.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,130.84 : 82,601.15 = 30,188.84 : x
  2. Step 2: Convert to fraction form
    55,130.84/82,601.15 = 30,188.84/x
  3. Step 3: Cross multiply
    55,130.84x = 82,601.15 × 30,188.84
  4. Step 4: Simplify right side
    55,130.84x = 2,493,632,901.17
  5. Step 5: Solve for x
    x = 2,493,632,901.17/55,130.84
  6. Step 6: Final answer
    x = 45,231.18

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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.