Home / 70,947.03-97,907.67-39,117.09

Finding the Fourth Proportional to 70,947.03, 97,907.67 and 39,117.09

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Solution

The fourth proportional to 70,947.03, 97,907.67 and 39,117.09 is: 53,982.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,947.03 : 97,907.67 = 39,117.09 : x
  2. Step 2: Convert to fraction form
    70,947.03/97,907.67 = 39,117.09/x
  3. Step 3: Cross multiply
    70,947.03x = 97,907.67 × 39,117.09
  4. Step 4: Simplify right side
    70,947.03x = 3,829,863,139.08
  5. Step 5: Solve for x
    x = 3,829,863,139.08/70,947.03
  6. Step 6: Final answer
    x = 53,982.01

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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.