Home / 54,275.04-74,904.12-30,401.28

Finding the Fourth Proportional to 54,275.04, 74,904.12 and 30,401.28

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Solution

The fourth proportional to 54,275.04, 74,904.12 and 30,401.28 is: 41,956.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,275.04 : 74,904.12 = 30,401.28 : x
  2. Step 2: Convert to fraction form
    54,275.04/74,904.12 = 30,401.28/x
  3. Step 3: Cross multiply
    54,275.04x = 74,904.12 × 30,401.28
  4. Step 4: Simplify right side
    54,275.04x = 2,277,181,125.27
  5. Step 5: Solve for x
    x = 2,277,181,125.27/54,275.04
  6. Step 6: Final answer
    x = 41,956.32

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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.