Home / 90,086.74-124,318.88-49,801.54

Finding the Fourth Proportional to 90,086.74, 124,318.88 and 49,801.54

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Solution

The fourth proportional to 90,086.74, 124,318.88 and 49,801.54 is: 68,725.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,086.74 : 124,318.88 = 49,801.54 : x
  2. Step 2: Convert to fraction form
    90,086.74/124,318.88 = 49,801.54/x
  3. Step 3: Cross multiply
    90,086.74x = 124,318.88 × 49,801.54
  4. Step 4: Simplify right side
    90,086.74x = 6,191,271,675.08
  5. Step 5: Solve for x
    x = 6,191,271,675.08/90,086.74
  6. Step 6: Final answer
    x = 68,725.67

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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.