Home / 74,703.06-103,089.71-40,711.61

Finding the Fourth Proportional to 74,703.06, 103,089.71 and 40,711.61

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Solution

The fourth proportional to 74,703.06, 103,089.71 and 40,711.61 is: 56,181.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,703.06 : 103,089.71 = 40,711.61 : x
  2. Step 2: Convert to fraction form
    74,703.06/103,089.71 = 40,711.61/x
  3. Step 3: Cross multiply
    74,703.06x = 103,089.71 × 40,711.61
  4. Step 4: Simplify right side
    74,703.06x = 4,196,948,428.04
  5. Step 5: Solve for x
    x = 4,196,948,428.04/74,703.06
  6. Step 6: Final answer
    x = 56,181.75

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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.