Home / 74,820.12-103,256.82-43,001.70

Finding the Fourth Proportional to 74,820.12, 103,256.82 and 43,001.70

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Solution

The fourth proportional to 74,820.12, 103,256.82 and 43,001.70 is: 59,345.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,820.12 : 103,256.82 = 43,001.70 : x
  2. Step 2: Convert to fraction form
    74,820.12/103,256.82 = 43,001.70/x
  3. Step 3: Cross multiply
    74,820.12x = 103,256.82 × 43,001.70
  4. Step 4: Simplify right side
    74,820.12x = 4,440,218,796.59
  5. Step 5: Solve for x
    x = 4,440,218,796.59/74,820.12
  6. Step 6: Final answer
    x = 59,345.25

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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.