Home / 70,945.40-97,905.36-39,113.48

Finding the Fourth Proportional to 70,945.40, 97,905.36 and 39,113.48

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Solution

The fourth proportional to 70,945.40, 97,905.36 and 39,113.48 is: 53,976.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,945.40 : 97,905.36 = 39,113.48 : x
  2. Step 2: Convert to fraction form
    70,945.40/97,905.36 = 39,113.48/x
  3. Step 3: Cross multiply
    70,945.40x = 97,905.36 × 39,113.48
  4. Step 4: Simplify right side
    70,945.40x = 3,829,419,340.25
  5. Step 5: Solve for x
    x = 3,829,419,340.25/70,945.40
  6. Step 6: Final answer
    x = 53,976.99

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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.