Home / 70,910.39-97,858.40-39,081.35

Finding the Fourth Proportional to 70,910.39, 97,858.40 and 39,081.35

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Solution

The fourth proportional to 70,910.39, 97,858.40 and 39,081.35 is: 53,933.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,910.39 : 97,858.40 = 39,081.35 : x
  2. Step 2: Convert to fraction form
    70,910.39/97,858.40 = 39,081.35/x
  3. Step 3: Cross multiply
    70,910.39x = 97,858.40 × 39,081.35
  4. Step 4: Simplify right side
    70,910.39x = 3,824,438,430.08
  5. Step 5: Solve for x
    x = 3,824,438,430.08/70,910.39
  6. Step 6: Final answer
    x = 53,933.40

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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.