Home / 64,789.05-97,074.23-31,437.30

Finding the Fourth Proportional to 64,789.05, 97,074.23 and 31,437.30

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Solution

The fourth proportional to 64,789.05, 97,074.23 and 31,437.30 is: 47,102.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,789.05 : 97,074.23 = 31,437.30 : x
  2. Step 2: Convert to fraction form
    64,789.05/97,074.23 = 31,437.30/x
  3. Step 3: Cross multiply
    64,789.05x = 97,074.23 × 31,437.30
  4. Step 4: Simplify right side
    64,789.05x = 3,051,751,533.59
  5. Step 5: Solve for x
    x = 3,051,751,533.59/64,789.05
  6. Step 6: Final answer
    x = 47,102.89

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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.