Home / 66,875.90-92,289.77-40,019.54

Finding the Fourth Proportional to 66,875.90, 92,289.77 and 40,019.54

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Solution

The fourth proportional to 66,875.90, 92,289.77 and 40,019.54 is: 55,227.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,875.90 : 92,289.77 = 40,019.54 : x
  2. Step 2: Convert to fraction form
    66,875.90/92,289.77 = 40,019.54/x
  3. Step 3: Cross multiply
    66,875.90x = 92,289.77 × 40,019.54
  4. Step 4: Simplify right side
    66,875.90x = 3,693,393,480.56
  5. Step 5: Solve for x
    x = 3,693,393,480.56/66,875.90
  6. Step 6: Final answer
    x = 55,227.57

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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.