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Finding the Fourth Proportional to 50,980.46, 70,325.42 and 30,843.86

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Solution

The fourth proportional to 50,980.46, 70,325.42 and 30,843.86 is: 42,547.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,980.46 : 70,325.42 = 30,843.86 : x
  2. Step 2: Convert to fraction form
    50,980.46/70,325.42 = 30,843.86/x
  3. Step 3: Cross multiply
    50,980.46x = 70,325.42 × 30,843.86
  4. Step 4: Simplify right side
    50,980.46x = 2,169,106,903.07
  5. Step 5: Solve for x
    x = 2,169,106,903.07/50,980.46
  6. Step 6: Final answer
    x = 42,547.81

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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.