Home / 70,739.12-97,618.03-38,908.08

Finding the Fourth Proportional to 70,739.12, 97,618.03 and 38,908.08

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Solution

The fourth proportional to 70,739.12, 97,618.03 and 38,908.08 is: 53,692.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,739.12 : 97,618.03 = 38,908.08 : x
  2. Step 2: Convert to fraction form
    70,739.12/97,618.03 = 38,908.08/x
  3. Step 3: Cross multiply
    70,739.12x = 97,618.03 × 38,908.08
  4. Step 4: Simplify right side
    70,739.12x = 3,798,130,023.41
  5. Step 5: Solve for x
    x = 3,798,130,023.41/70,739.12
  6. Step 6: Final answer
    x = 53,692.07

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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.