Home / 64,975.20-97,462.80-31,716.60

Finding the Fourth Proportional to 64,975.20, 97,462.80 and 31,716.60

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Solution

The fourth proportional to 64,975.20, 97,462.80 and 31,716.60 is: 47,574.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,975.20 : 97,462.80 = 31,716.60 : x
  2. Step 2: Convert to fraction form
    64,975.20/97,462.80 = 31,716.60/x
  3. Step 3: Cross multiply
    64,975.20x = 97,462.80 × 31,716.60
  4. Step 4: Simplify right side
    64,975.20x = 3,091,188,642.48
  5. Step 5: Solve for x
    x = 3,091,188,642.48/64,975.20
  6. Step 6: Final answer
    x = 47,574.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.