Home / 66,719.76-91,967.40-52,550.16

Finding the Fourth Proportional to 66,719.76, 91,967.40 and 52,550.16

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Solution

The fourth proportional to 66,719.76, 91,967.40 and 52,550.16 is: 72,435.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,719.76 : 91,967.40 = 52,550.16 : x
  2. Step 2: Convert to fraction form
    66,719.76/91,967.40 = 52,550.16/x
  3. Step 3: Cross multiply
    66,719.76x = 91,967.40 × 52,550.16
  4. Step 4: Simplify right side
    66,719.76x = 4,832,901,584.78
  5. Step 5: Solve for x
    x = 4,832,901,584.78/66,719.76
  6. Step 6: Final answer
    x = 72,435.84

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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.