Home / 54,318.29-74,955.06-30,440.32

Finding the Fourth Proportional to 54,318.29, 74,955.06 and 30,440.32

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Solution

The fourth proportional to 54,318.29, 74,955.06 and 30,440.32 is: 42,005.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,318.29 : 74,955.06 = 30,440.32 : x
  2. Step 2: Convert to fraction form
    54,318.29/74,955.06 = 30,440.32/x
  3. Step 3: Cross multiply
    54,318.29x = 74,955.06 × 30,440.32
  4. Step 4: Simplify right side
    54,318.29x = 2,281,655,824.63
  5. Step 5: Solve for x
    x = 2,281,655,824.63/54,318.29
  6. Step 6: Final answer
    x = 42,005.30

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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.