Home / 90,126.90-124,364.16-49,835.16

Finding the Fourth Proportional to 90,126.90, 124,364.16 and 49,835.16

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Solution

The fourth proportional to 90,126.90, 124,364.16 and 49,835.16 is: 68,766.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,126.90 : 124,364.16 = 49,835.16 : x
  2. Step 2: Convert to fraction form
    90,126.90/124,364.16 = 49,835.16/x
  3. Step 3: Cross multiply
    90,126.90x = 124,364.16 × 49,835.16
  4. Step 4: Simplify right side
    90,126.90x = 6,197,707,811.87
  5. Step 5: Solve for x
    x = 6,197,707,811.87/90,126.90
  6. Step 6: Final answer
    x = 68,766.46

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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.