Home / 81,527.40-122,291.10-74,310.30

Finding the Fourth Proportional to 81,527.40, 122,291.10 and 74,310.30

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Solution

The fourth proportional to 81,527.40, 122,291.10 and 74,310.30 is: 111,465.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,527.40 : 122,291.10 = 74,310.30 : x
  2. Step 2: Convert to fraction form
    81,527.40/122,291.10 = 74,310.30/x
  3. Step 3: Cross multiply
    81,527.40x = 122,291.10 × 74,310.30
  4. Step 4: Simplify right side
    81,527.40x = 9,087,488,328.33
  5. Step 5: Solve for x
    x = 9,087,488,328.33/81,527.40
  6. Step 6: Final answer
    x = 111,465.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.