Home / 74,069.84-102,215.65-40,077.59

Finding the Fourth Proportional to 74,069.84, 102,215.65 and 40,077.59

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Solution

The fourth proportional to 74,069.84, 102,215.65 and 40,077.59 is: 55,306.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,069.84 : 102,215.65 = 40,077.59 : x
  2. Step 2: Convert to fraction form
    74,069.84/102,215.65 = 40,077.59/x
  3. Step 3: Cross multiply
    74,069.84x = 102,215.65 × 40,077.59
  4. Step 4: Simplify right side
    74,069.84x = 4,096,556,263.44
  5. Step 5: Solve for x
    x = 4,096,556,263.44/74,069.84
  6. Step 6: Final answer
    x = 55,306.67

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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.