Home / 88,173.81-121,676.40-47,886.66

Finding the Fourth Proportional to 88,173.81, 121,676.40 and 47,886.66

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Solution

The fourth proportional to 88,173.81, 121,676.40 and 47,886.66 is: 66,081.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,173.81 : 121,676.40 = 47,886.66 : x
  2. Step 2: Convert to fraction form
    88,173.81/121,676.40 = 47,886.66/x
  3. Step 3: Cross multiply
    88,173.81x = 121,676.40 × 47,886.66
  4. Step 4: Simplify right side
    88,173.81x = 5,826,676,396.82
  5. Step 5: Solve for x
    x = 5,826,676,396.82/88,173.81
  6. Step 6: Final answer
    x = 66,081.71

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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.