Home / 54,928.40-82,392.60-40,931.60

Finding the Fourth Proportional to 54,928.40, 82,392.60 and 40,931.60

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Solution

The fourth proportional to 54,928.40, 82,392.60 and 40,931.60 is: 61,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,928.40 : 82,392.60 = 40,931.60 : x
  2. Step 2: Convert to fraction form
    54,928.40/82,392.60 = 40,931.60/x
  3. Step 3: Cross multiply
    54,928.40x = 82,392.60 × 40,931.60
  4. Step 4: Simplify right side
    54,928.40x = 3,372,460,946.16
  5. Step 5: Solve for x
    x = 3,372,460,946.16/54,928.40
  6. Step 6: Final answer
    x = 61,397.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.