Home / 54,389.81-74,918.09-38,446.85

Finding the Fourth Proportional to 54,389.81, 74,918.09 and 38,446.85

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Solution

The fourth proportional to 54,389.81, 74,918.09 and 38,446.85 is: 52,957.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,389.81 : 74,918.09 = 38,446.85 : x
  2. Step 2: Convert to fraction form
    54,389.81/74,918.09 = 38,446.85/x
  3. Step 3: Cross multiply
    54,389.81x = 74,918.09 × 38,446.85
  4. Step 4: Simplify right side
    54,389.81x = 2,880,364,568.52
  5. Step 5: Solve for x
    x = 2,880,364,568.52/54,389.81
  6. Step 6: Final answer
    x = 52,957.80

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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.