Home / 66,035.25-91,128.58-35,820.50

Finding the Fourth Proportional to 66,035.25, 91,128.58 and 35,820.50

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Solution

The fourth proportional to 66,035.25, 91,128.58 and 35,820.50 is: 49,432.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,035.25 : 91,128.58 = 35,820.50 : x
  2. Step 2: Convert to fraction form
    66,035.25/91,128.58 = 35,820.50/x
  3. Step 3: Cross multiply
    66,035.25x = 91,128.58 × 35,820.50
  4. Step 4: Simplify right side
    66,035.25x = 3,264,270,754.70
  5. Step 5: Solve for x
    x = 3,264,270,754.70/66,035.25
  6. Step 6: Final answer
    x = 49,432.25

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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.