Home / 63,629.55-87,768.42-39,089.63

Finding the Fourth Proportional to 63,629.55, 87,768.42 and 39,089.63

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Solution

The fourth proportional to 63,629.55, 87,768.42 and 39,089.63 is: 53,918.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,629.55 : 87,768.42 = 39,089.63 : x
  2. Step 2: Convert to fraction form
    63,629.55/87,768.42 = 39,089.63/x
  3. Step 3: Cross multiply
    63,629.55x = 87,768.42 × 39,089.63
  4. Step 4: Simplify right side
    63,629.55x = 3,430,834,624.64
  5. Step 5: Solve for x
    x = 3,430,834,624.64/63,629.55
  6. Step 6: Final answer
    x = 53,918.89

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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.