Home / 81,535.18-122,289.65-22,357.12

Finding the Fourth Proportional to 81,535.18, 122,289.65 and 22,357.12

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Solution

The fourth proportional to 81,535.18, 122,289.65 and 22,357.12 is: 33,532.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,535.18 : 122,289.65 = 22,357.12 : x
  2. Step 2: Convert to fraction form
    81,535.18/122,289.65 = 22,357.12/x
  3. Step 3: Cross multiply
    81,535.18x = 122,289.65 × 22,357.12
  4. Step 4: Simplify right side
    81,535.18x = 2,734,044,379.81
  5. Step 5: Solve for x
    x = 2,734,044,379.81/81,535.18
  6. Step 6: Final answer
    x = 33,532.08

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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.