Home / 78,962.50-118,525.76-45,747.44

Finding the Fourth Proportional to 78,962.50, 118,525.76 and 45,747.44

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Solution

The fourth proportional to 78,962.50, 118,525.76 and 45,747.44 is: 68,668.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,962.50 : 118,525.76 = 45,747.44 : x
  2. Step 2: Convert to fraction form
    78,962.50/118,525.76 = 45,747.44/x
  3. Step 3: Cross multiply
    78,962.50x = 118,525.76 × 45,747.44
  4. Step 4: Simplify right side
    78,962.50x = 5,422,249,272.69
  5. Step 5: Solve for x
    x = 5,422,249,272.69/78,962.50
  6. Step 6: Final answer
    x = 68,668.67

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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.