Home / 90,197.35-124,478.57-49,912.81

Finding the Fourth Proportional to 90,197.35, 124,478.57 and 49,912.81

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Solution

The fourth proportional to 90,197.35, 124,478.57 and 49,912.81 is: 68,883.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,197.35 : 124,478.57 = 49,912.81 : x
  2. Step 2: Convert to fraction form
    90,197.35/124,478.57 = 49,912.81/x
  3. Step 3: Cross multiply
    90,197.35x = 124,478.57 × 49,912.81
  4. Step 4: Simplify right side
    90,197.35x = 6,213,075,027.07
  5. Step 5: Solve for x
    x = 6,213,075,027.07/90,197.35
  6. Step 6: Final answer
    x = 68,883.12

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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.