Home / 70,947.90-97,907.94-39,117.33

Finding the Fourth Proportional to 70,947.90, 97,907.94 and 39,117.33

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Solution

The fourth proportional to 70,947.90, 97,907.94 and 39,117.33 is: 53,981.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,947.90 : 97,907.94 = 39,117.33 : x
  2. Step 2: Convert to fraction form
    70,947.90/97,907.94 = 39,117.33/x
  3. Step 3: Cross multiply
    70,947.90x = 97,907.94 × 39,117.33
  4. Step 4: Simplify right side
    70,947.90x = 3,829,897,198.60
  5. Step 5: Solve for x
    x = 3,829,897,198.60/70,947.90
  6. Step 6: Final answer
    x = 53,981.83

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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.