Home / 88,814.40-122,618.52-57,039.30

Finding the Fourth Proportional to 88,814.40, 122,618.52 and 57,039.30

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Solution

The fourth proportional to 88,814.40, 122,618.52 and 57,039.30 is: 78,749.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,814.40 : 122,618.52 = 57,039.30 : x
  2. Step 2: Convert to fraction form
    88,814.40/122,618.52 = 57,039.30/x
  3. Step 3: Cross multiply
    88,814.40x = 122,618.52 × 57,039.30
  4. Step 4: Simplify right side
    88,814.40x = 6,994,074,547.84
  5. Step 5: Solve for x
    x = 6,994,074,547.84/88,814.40
  6. Step 6: Final answer
    x = 78,749.33

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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.