Home / 85,946.75-128,971.97-36,698.75

Finding the Fourth Proportional to 85,946.75, 128,971.97 and 36,698.75

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Solution

The fourth proportional to 85,946.75, 128,971.97 and 36,698.75 is: 55,070.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,946.75 : 128,971.97 = 36,698.75 : x
  2. Step 2: Convert to fraction form
    85,946.75/128,971.97 = 36,698.75/x
  3. Step 3: Cross multiply
    85,946.75x = 128,971.97 × 36,698.75
  4. Step 4: Simplify right side
    85,946.75x = 4,733,110,084.04
  5. Step 5: Solve for x
    x = 4,733,110,084.04/85,946.75
  6. Step 6: Final answer
    x = 55,070.26

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1.5x scale

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.