Home / 76,962.75-106,223.04-45,131.64

Finding the Fourth Proportional to 76,962.75, 106,223.04 and 45,131.64

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Solution

The fourth proportional to 76,962.75, 106,223.04 and 45,131.64 is: 62,290.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,962.75 : 106,223.04 = 45,131.64 : x
  2. Step 2: Convert to fraction form
    76,962.75/106,223.04 = 45,131.64/x
  3. Step 3: Cross multiply
    76,962.75x = 106,223.04 × 45,131.64
  4. Step 4: Simplify right side
    76,962.75x = 4,794,020,000.99
  5. Step 5: Solve for x
    x = 4,794,020,000.99/76,962.75
  6. Step 6: Final answer
    x = 62,290.13

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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.