Home / 90,154.74-124,409.70-49,318.20

Finding the Fourth Proportional to 90,154.74, 124,409.70 and 49,318.20

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Solution

The fourth proportional to 90,154.74, 124,409.70 and 49,318.20 is: 68,057.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,154.74 : 124,409.70 = 49,318.20 : x
  2. Step 2: Convert to fraction form
    90,154.74/124,409.70 = 49,318.20/x
  3. Step 3: Cross multiply
    90,154.74x = 124,409.70 × 49,318.20
  4. Step 4: Simplify right side
    90,154.74x = 6,135,662,466.54
  5. Step 5: Solve for x
    x = 6,135,662,466.54/90,154.74
  6. Step 6: Final answer
    x = 68,057.01

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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.