Home / 55,916.88-77,165.29-30,766.38

Finding the Fourth Proportional to 55,916.88, 77,165.29 and 30,766.38

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Solution

The fourth proportional to 55,916.88, 77,165.29 and 30,766.38 is: 42,457.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,916.88 : 77,165.29 = 30,766.38 : x
  2. Step 2: Convert to fraction form
    55,916.88/77,165.29 = 30,766.38/x
  3. Step 3: Cross multiply
    55,916.88x = 77,165.29 × 30,766.38
  4. Step 4: Simplify right side
    55,916.88x = 2,374,096,634.95
  5. Step 5: Solve for x
    x = 2,374,096,634.95/55,916.88
  6. Step 6: Final answer
    x = 42,457.60

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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.