Home / 70,739.30-97,619.46-38,908.64

Finding the Fourth Proportional to 70,739.30, 97,619.46 and 38,908.64

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Solution

The fourth proportional to 70,739.30, 97,619.46 and 38,908.64 is: 53,693.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,739.30 : 97,619.46 = 38,908.64 : x
  2. Step 2: Convert to fraction form
    70,739.30/97,619.46 = 38,908.64/x
  3. Step 3: Cross multiply
    70,739.30x = 97,619.46 × 38,908.64
  4. Step 4: Simplify right side
    70,739.30x = 3,798,240,426.13
  5. Step 5: Solve for x
    x = 3,798,240,426.13/70,739.30
  6. Step 6: Final answer
    x = 53,693.50

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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.