Home / 53,937.05-74,440.31-30,975.98

Finding the Fourth Proportional to 53,937.05, 74,440.31 and 30,975.98

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Solution

The fourth proportional to 53,937.05, 74,440.31 and 30,975.98 is: 42,750.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,937.05 : 74,440.31 = 30,975.98 : x
  2. Step 2: Convert to fraction form
    53,937.05/74,440.31 = 30,975.98/x
  3. Step 3: Cross multiply
    53,937.05x = 74,440.31 × 30,975.98
  4. Step 4: Simplify right side
    53,937.05x = 2,305,861,553.75
  5. Step 5: Solve for x
    x = 2,305,861,553.75/53,937.05
  6. Step 6: Final answer
    x = 42,750.98

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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.