Home / 99,293.07-137,018.74-53,970.68

Finding the Fourth Proportional to 99,293.07, 137,018.74 and 53,970.68

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Solution

The fourth proportional to 99,293.07, 137,018.74 and 53,970.68 is: 74,476.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,293.07 : 137,018.74 = 53,970.68 : x
  2. Step 2: Convert to fraction form
    99,293.07/137,018.74 = 53,970.68/x
  3. Step 3: Cross multiply
    99,293.07x = 137,018.74 × 53,970.68
  4. Step 4: Simplify right side
    99,293.07x = 7,394,994,493.99
  5. Step 5: Solve for x
    x = 7,394,994,493.99/99,293.07
  6. Step 6: Final answer
    x = 74,476.44

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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.