Home / 70,921.32-106,431.12-45,899.07

Finding the Fourth Proportional to 70,921.32, 106,431.12 and 45,899.07

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Solution

The fourth proportional to 70,921.32, 106,431.12 and 45,899.07 is: 68,880.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,921.32 : 106,431.12 = 45,899.07 : x
  2. Step 2: Convert to fraction form
    70,921.32/106,431.12 = 45,899.07/x
  3. Step 3: Cross multiply
    70,921.32x = 106,431.12 × 45,899.07
  4. Step 4: Simplify right side
    70,921.32x = 4,885,089,427.06
  5. Step 5: Solve for x
    x = 4,885,089,427.06/70,921.32
  6. Step 6: Final answer
    x = 68,880.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.