Home / 70,939.39-97,900.77-39,108.25

Finding the Fourth Proportional to 70,939.39, 97,900.77 and 39,108.25

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Solution

The fourth proportional to 70,939.39, 97,900.77 and 39,108.25 is: 53,971.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,939.39 : 97,900.77 = 39,108.25 : x
  2. Step 2: Convert to fraction form
    70,939.39/97,900.77 = 39,108.25/x
  3. Step 3: Cross multiply
    70,939.39x = 97,900.77 × 39,108.25
  4. Step 4: Simplify right side
    70,939.39x = 3,828,727,788.35
  5. Step 5: Solve for x
    x = 3,828,727,788.35/70,939.39
  6. Step 6: Final answer
    x = 53,971.82

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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.