Home / 70,940.30-97,897.26-39,109.16

Finding the Fourth Proportional to 70,940.30, 97,897.26 and 39,109.16

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Solution

The fourth proportional to 70,940.30, 97,897.26 and 39,109.16 is: 53,970.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,940.30 : 97,897.26 = 39,109.16 : x
  2. Step 2: Convert to fraction form
    70,940.30/97,897.26 = 39,109.16/x
  3. Step 3: Cross multiply
    70,940.30x = 97,897.26 × 39,109.16
  4. Step 4: Simplify right side
    70,940.30x = 3,828,679,604.90
  5. Step 5: Solve for x
    x = 3,828,679,604.90/70,940.30
  6. Step 6: Final answer
    x = 53,970.45

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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.