Home / 51,741.84-71,387.68-30,216.05

Finding the Fourth Proportional to 51,741.84, 71,387.68 and 30,216.05

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Solution

The fourth proportional to 51,741.84, 71,387.68 and 30,216.05 is: 41,688.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,741.84 : 71,387.68 = 30,216.05 : x
  2. Step 2: Convert to fraction form
    51,741.84/71,387.68 = 30,216.05/x
  3. Step 3: Cross multiply
    51,741.84x = 71,387.68 × 30,216.05
  4. Step 4: Simplify right side
    51,741.84x = 2,157,054,001.70
  5. Step 5: Solve for x
    x = 2,157,054,001.70/51,741.84
  6. Step 6: Final answer
    x = 41,688.78

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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.