Home / 70,949.25-97,910.37-39,117.60

Finding the Fourth Proportional to 70,949.25, 97,910.37 and 39,117.60

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Solution

The fourth proportional to 70,949.25, 97,910.37 and 39,117.60 is: 53,982.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,949.25 : 97,910.37 = 39,117.60 : x
  2. Step 2: Convert to fraction form
    70,949.25/97,910.37 = 39,117.60/x
  3. Step 3: Cross multiply
    70,949.25x = 97,910.37 × 39,117.60
  4. Step 4: Simplify right side
    70,949.25x = 3,830,018,689.51
  5. Step 5: Solve for x
    x = 3,830,018,689.51/70,949.25
  6. Step 6: Final answer
    x = 53,982.51

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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.