Home / 81,804.06-112,920.45-47,823.58

Finding the Fourth Proportional to 81,804.06, 112,920.45 and 47,823.58

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Solution

The fourth proportional to 81,804.06, 112,920.45 and 47,823.58 is: 66,014.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,804.06 : 112,920.45 = 47,823.58 : x
  2. Step 2: Convert to fraction form
    81,804.06/112,920.45 = 47,823.58/x
  3. Step 3: Cross multiply
    81,804.06x = 112,920.45 × 47,823.58
  4. Step 4: Simplify right side
    81,804.06x = 5,400,260,136.02
  5. Step 5: Solve for x
    x = 5,400,260,136.02/81,804.06
  6. Step 6: Final answer
    x = 66,014.57

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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.