Home / 90,043.45-124,258.25-49,756.34

Finding the Fourth Proportional to 90,043.45, 124,258.25 and 49,756.34

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Solution

The fourth proportional to 90,043.45, 124,258.25 and 49,756.34 is: 68,662.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,043.45 : 124,258.25 = 49,756.34 : x
  2. Step 2: Convert to fraction form
    90,043.45/124,258.25 = 49,756.34/x
  3. Step 3: Cross multiply
    90,043.45x = 124,258.25 × 49,756.34
  4. Step 4: Simplify right side
    90,043.45x = 6,182,636,169.84
  5. Step 5: Solve for x
    x = 6,182,636,169.84/90,043.45
  6. Step 6: Final answer
    x = 68,662.81

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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.