Home / 53,398.05-80,072.78-28,431.69

Finding the Fourth Proportional to 53,398.05, 80,072.78 and 28,431.69

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Solution

The fourth proportional to 53,398.05, 80,072.78 and 28,431.69 is: 42,634.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,398.05 : 80,072.78 = 28,431.69 : x
  2. Step 2: Convert to fraction form
    53,398.05/80,072.78 = 28,431.69/x
  3. Step 3: Cross multiply
    53,398.05x = 80,072.78 × 28,431.69
  4. Step 4: Simplify right side
    53,398.05x = 2,276,604,316.24
  5. Step 5: Solve for x
    x = 2,276,604,316.24/53,398.05
  6. Step 6: Final answer
    x = 42,634.60

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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.