Home / 90,119.98-124,360.23-49,830.58

Finding the Fourth Proportional to 90,119.98, 124,360.23 and 49,830.58

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Solution

The fourth proportional to 90,119.98, 124,360.23 and 49,830.58 is: 68,763.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,119.98 : 124,360.23 = 49,830.58 : x
  2. Step 2: Convert to fraction form
    90,119.98/124,360.23 = 49,830.58/x
  3. Step 3: Cross multiply
    90,119.98x = 124,360.23 × 49,830.58
  4. Step 4: Simplify right side
    90,119.98x = 6,196,942,389.83
  5. Step 5: Solve for x
    x = 6,196,942,389.83/90,119.98
  6. Step 6: Final answer
    x = 68,763.25

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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.