Home / 70,940.22-97,897.80-39,108.42

Finding the Fourth Proportional to 70,940.22, 97,897.80 and 39,108.42

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Solution

The fourth proportional to 70,940.22, 97,897.80 and 39,108.42 is: 53,969.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,940.22 : 97,897.80 = 39,108.42 : x
  2. Step 2: Convert to fraction form
    70,940.22/97,897.80 = 39,108.42/x
  3. Step 3: Cross multiply
    70,940.22x = 97,897.80 × 39,108.42
  4. Step 4: Simplify right side
    70,940.22x = 3,828,628,279.48
  5. Step 5: Solve for x
    x = 3,828,628,279.48/70,940.22
  6. Step 6: Final answer
    x = 53,969.78

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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.