Home / 54,153.04-74,731-30,279.64

Finding the Fourth Proportional to 54,153.04, 74,731 and 30,279.64

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Solution

The fourth proportional to 54,153.04, 74,731 and 30,279.64 is: 41,785.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,153.04 : 74,731 = 30,279.64 : x
  2. Step 2: Convert to fraction form
    54,153.04/74,731 = 30,279.64/x
  3. Step 3: Cross multiply
    54,153.04x = 74,731 × 30,279.64
  4. Step 4: Simplify right side
    54,153.04x = 2,262,827,776.84
  5. Step 5: Solve for x
    x = 2,262,827,776.84/54,153.04
  6. Step 6: Final answer
    x = 41,785.79

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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.