Home / 55,386.08-76,431.60-30,236

Finding the Fourth Proportional to 55,386.08, 76,431.60 and 30,236

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Solution

The fourth proportional to 55,386.08, 76,431.60 and 30,236 is: 41,725.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,386.08 : 76,431.60 = 30,236 : x
  2. Step 2: Convert to fraction form
    55,386.08/76,431.60 = 30,236/x
  3. Step 3: Cross multiply
    55,386.08x = 76,431.60 × 30,236
  4. Step 4: Simplify right side
    55,386.08x = 2,310,985,857.60
  5. Step 5: Solve for x
    x = 2,310,985,857.60/55,386.08
  6. Step 6: Final answer
    x = 41,725.03

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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.