Home / 70,939.37-97,897.09-39,109.41

Finding the Fourth Proportional to 70,939.37, 97,897.09 and 39,109.41

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Solution

The fourth proportional to 70,939.37, 97,897.09 and 39,109.41 is: 53,971.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,939.37 : 97,897.09 = 39,109.41 : x
  2. Step 2: Convert to fraction form
    70,939.37/97,897.09 = 39,109.41/x
  3. Step 3: Cross multiply
    70,939.37x = 97,897.09 × 39,109.41
  4. Step 4: Simplify right side
    70,939.37x = 3,828,697,235.07
  5. Step 5: Solve for x
    x = 3,828,697,235.07/70,939.37
  6. Step 6: Final answer
    x = 53,971.40

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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.