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Finding the Fourth Proportional to 73,612.73, 101,585.60 and 40,078.73

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Solution

The fourth proportional to 73,612.73, 101,585.60 and 40,078.73 is: 55,308.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,612.73 : 101,585.60 = 40,078.73 : x
  2. Step 2: Convert to fraction form
    73,612.73/101,585.60 = 40,078.73/x
  3. Step 3: Cross multiply
    73,612.73x = 101,585.60 × 40,078.73
  4. Step 4: Simplify right side
    73,612.73x = 4,071,421,834.29
  5. Step 5: Solve for x
    x = 4,071,421,834.29/73,612.73
  6. Step 6: Final answer
    x = 55,308.67

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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.