Home / 88,274.38-121,813.58-47,987.81

Finding the Fourth Proportional to 88,274.38, 121,813.58 and 47,987.81

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Solution

The fourth proportional to 88,274.38, 121,813.58 and 47,987.81 is: 66,220.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,274.38 : 121,813.58 = 47,987.81 : x
  2. Step 2: Convert to fraction form
    88,274.38/121,813.58 = 47,987.81/x
  3. Step 3: Cross multiply
    88,274.38x = 121,813.58 × 47,987.81
  4. Step 4: Simplify right side
    88,274.38x = 5,845,567,356.96
  5. Step 5: Solve for x
    x = 5,845,567,356.96/88,274.38
  6. Step 6: Final answer
    x = 66,220.43

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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.