Home / 68,029.20-93,686.76-49,136.40

Finding the Fourth Proportional to 68,029.20, 93,686.76 and 49,136.40

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Solution

The fourth proportional to 68,029.20, 93,686.76 and 49,136.40 is: 67,668.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,029.20 : 93,686.76 = 49,136.40 : x
  2. Step 2: Convert to fraction form
    68,029.20/93,686.76 = 49,136.40/x
  3. Step 3: Cross multiply
    68,029.20x = 93,686.76 × 49,136.40
  4. Step 4: Simplify right side
    68,029.20x = 4,603,430,114.06
  5. Step 5: Solve for x
    x = 4,603,430,114.06/68,029.20
  6. Step 6: Final answer
    x = 67,668.44

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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.