Home / 48,516.57-66,962.79-28,378.40

Finding the Fourth Proportional to 48,516.57, 66,962.79 and 28,378.40

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Solution

The fourth proportional to 48,516.57, 66,962.79 and 28,378.40 is: 39,167.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,516.57 : 66,962.79 = 28,378.40 : x
  2. Step 2: Convert to fraction form
    48,516.57/66,962.79 = 28,378.40/x
  3. Step 3: Cross multiply
    48,516.57x = 66,962.79 × 28,378.40
  4. Step 4: Simplify right side
    48,516.57x = 1,900,296,504.92
  5. Step 5: Solve for x
    x = 1,900,296,504.92/48,516.57
  6. Step 6: Final answer
    x = 39,167.99

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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.