Home / 61,403.12-84,743.84-34,546.80

Finding the Fourth Proportional to 61,403.12, 84,743.84 and 34,546.80

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Solution

The fourth proportional to 61,403.12, 84,743.84 and 34,546.80 is: 47,678.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,403.12 : 84,743.84 = 34,546.80 : x
  2. Step 2: Convert to fraction form
    61,403.12/84,743.84 = 34,546.80/x
  3. Step 3: Cross multiply
    61,403.12x = 84,743.84 × 34,546.80
  4. Step 4: Simplify right side
    61,403.12x = 2,927,628,491.71
  5. Step 5: Solve for x
    x = 2,927,628,491.71/61,403.12
  6. Step 6: Final answer
    x = 47,678.82

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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.