Home / 66,979.14-92,430.78-36,763.68

Finding the Fourth Proportional to 66,979.14, 92,430.78 and 36,763.68

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Solution

The fourth proportional to 66,979.14, 92,430.78 and 36,763.68 is: 50,733.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,979.14 : 92,430.78 = 36,763.68 : x
  2. Step 2: Convert to fraction form
    66,979.14/92,430.78 = 36,763.68/x
  3. Step 3: Cross multiply
    66,979.14x = 92,430.78 × 36,763.68
  4. Step 4: Simplify right side
    66,979.14x = 3,398,095,618.07
  5. Step 5: Solve for x
    x = 3,398,095,618.07/66,979.14
  6. Step 6: Final answer
    x = 50,733.64

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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.