Home / 66,258.22-91,470.21-51,116.89

Finding the Fourth Proportional to 66,258.22, 91,470.21 and 51,116.89

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Solution

The fourth proportional to 66,258.22, 91,470.21 and 51,116.89 is: 70,567.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,258.22 : 91,470.21 = 51,116.89 : x
  2. Step 2: Convert to fraction form
    66,258.22/91,470.21 = 51,116.89/x
  3. Step 3: Cross multiply
    66,258.22x = 91,470.21 × 51,116.89
  4. Step 4: Simplify right side
    66,258.22x = 4,675,672,205.50
  5. Step 5: Solve for x
    x = 4,675,672,205.50/66,258.22
  6. Step 6: Final answer
    x = 70,567.43

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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.