Home / 70,905.30-97,847.37-38,639.22

Finding the Fourth Proportional to 70,905.30, 97,847.37 and 38,639.22

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Solution

The fourth proportional to 70,905.30, 97,847.37 and 38,639.22 is: 53,321.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,905.30 : 97,847.37 = 38,639.22 : x
  2. Step 2: Convert to fraction form
    70,905.30/97,847.37 = 38,639.22/x
  3. Step 3: Cross multiply
    70,905.30x = 97,847.37 × 38,639.22
  4. Step 4: Simplify right side
    70,905.30x = 3,780,746,055.85
  5. Step 5: Solve for x
    x = 3,780,746,055.85/70,905.30
  6. Step 6: Final answer
    x = 53,321.06

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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.