Home / 70,739.04-97,619.84-38,910.08

Finding the Fourth Proportional to 70,739.04, 97,619.84 and 38,910.08

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Solution

The fourth proportional to 70,739.04, 97,619.84 and 38,910.08 is: 53,695.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,739.04 : 97,619.84 = 38,910.08 : x
  2. Step 2: Convert to fraction form
    70,739.04/97,619.84 = 38,910.08/x
  3. Step 3: Cross multiply
    70,739.04x = 97,619.84 × 38,910.08
  4. Step 4: Simplify right side
    70,739.04x = 3,798,395,783.99
  5. Step 5: Solve for x
    x = 3,798,395,783.99/70,739.04
  6. Step 6: Final answer
    x = 53,695.89

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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.