Home / 81,030.22-111,827.32-45,227.20

Finding the Fourth Proportional to 81,030.22, 111,827.32 and 45,227.20

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Solution

The fourth proportional to 81,030.22, 111,827.32 and 45,227.20 is: 62,416.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,030.22 : 111,827.32 = 45,227.20 : x
  2. Step 2: Convert to fraction form
    81,030.22/111,827.32 = 45,227.20/x
  3. Step 3: Cross multiply
    81,030.22x = 111,827.32 × 45,227.20
  4. Step 4: Simplify right side
    81,030.22x = 5,057,636,567.10
  5. Step 5: Solve for x
    x = 5,057,636,567.10/81,030.22
  6. Step 6: Final answer
    x = 62,416.67

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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.