Home / 85,661.09-118,210.86-47,419.82

Finding the Fourth Proportional to 85,661.09, 118,210.86 and 47,419.82

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Solution

The fourth proportional to 85,661.09, 118,210.86 and 47,419.82 is: 65,438.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,661.09 : 118,210.86 = 47,419.82 : x
  2. Step 2: Convert to fraction form
    85,661.09/118,210.86 = 47,419.82/x
  3. Step 3: Cross multiply
    85,661.09x = 118,210.86 × 47,419.82
  4. Step 4: Simplify right side
    85,661.09x = 5,605,537,112.19
  5. Step 5: Solve for x
    x = 5,605,537,112.19/85,661.09
  6. Step 6: Final answer
    x = 65,438.55

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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.