Home / 66,035.64-91,128.30-37,740.60

Finding the Fourth Proportional to 66,035.64, 91,128.30 and 37,740.60

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Solution

The fourth proportional to 66,035.64, 91,128.30 and 37,740.60 is: 52,081.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,035.64 : 91,128.30 = 37,740.60 : x
  2. Step 2: Convert to fraction form
    66,035.64/91,128.30 = 37,740.60/x
  3. Step 3: Cross multiply
    66,035.64x = 91,128.30 × 37,740.60
  4. Step 4: Simplify right side
    66,035.64x = 3,439,236,718.98
  5. Step 5: Solve for x
    x = 3,439,236,718.98/66,035.64
  6. Step 6: Final answer
    x = 52,081.52

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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.