Home / 70,739.17-97,620.20-38,907.43

Finding the Fourth Proportional to 70,739.17, 97,620.20 and 38,907.43

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Solution

The fourth proportional to 70,739.17, 97,620.20 and 38,907.43 is: 53,692.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,739.17 : 97,620.20 = 38,907.43 : x
  2. Step 2: Convert to fraction form
    70,739.17/97,620.20 = 38,907.43/x
  3. Step 3: Cross multiply
    70,739.17x = 97,620.20 × 38,907.43
  4. Step 4: Simplify right side
    70,739.17x = 3,798,151,098.09
  5. Step 5: Solve for x
    x = 3,798,151,098.09/70,739.17
  6. Step 6: Final answer
    x = 53,692.33

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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.