Home / 54,321.87-74,967.65-30,448.55

Finding the Fourth Proportional to 54,321.87, 74,967.65 and 30,448.55

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Solution

The fourth proportional to 54,321.87, 74,967.65 and 30,448.55 is: 42,020.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,321.87 : 74,967.65 = 30,448.55 : x
  2. Step 2: Convert to fraction form
    54,321.87/74,967.65 = 30,448.55/x
  3. Step 3: Cross multiply
    54,321.87x = 74,967.65 × 30,448.55
  4. Step 4: Simplify right side
    54,321.87x = 2,282,655,993.46
  5. Step 5: Solve for x
    x = 2,282,655,993.46/54,321.87
  6. Step 6: Final answer
    x = 42,020.94

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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.