Home / 49,915.50-68,875.56-28,690.80

Finding the Fourth Proportional to 49,915.50, 68,875.56 and 28,690.80

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Solution

The fourth proportional to 49,915.50, 68,875.56 and 28,690.80 is: 39,588.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,915.50 : 68,875.56 = 28,690.80 : x
  2. Step 2: Convert to fraction form
    49,915.50/68,875.56 = 28,690.80/x
  3. Step 3: Cross multiply
    49,915.50x = 68,875.56 × 28,690.80
  4. Step 4: Simplify right side
    49,915.50x = 1,976,094,916.85
  5. Step 5: Solve for x
    x = 1,976,094,916.85/49,915.50
  6. Step 6: Final answer
    x = 39,588.80

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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.