Home / 74,916.12-103,387.39-43,085.05

Finding the Fourth Proportional to 74,916.12, 103,387.39 and 43,085.05

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Solution

The fourth proportional to 74,916.12, 103,387.39 and 43,085.05 is: 59,459.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,916.12 : 103,387.39 = 43,085.05 : x
  2. Step 2: Convert to fraction form
    74,916.12/103,387.39 = 43,085.05/x
  3. Step 3: Cross multiply
    74,916.12x = 103,387.39 × 43,085.05
  4. Step 4: Simplify right side
    74,916.12x = 4,454,450,350.58
  5. Step 5: Solve for x
    x = 4,454,450,350.58/74,916.12
  6. Step 6: Final answer
    x = 59,459.17

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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.