Home / 105,395.54-145,448.01-57,651.98

Finding the Fourth Proportional to 105,395.54, 145,448.01 and 57,651.98

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Solution

The fourth proportional to 105,395.54, 145,448.01 and 57,651.98 is: 79,560.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,395.54 : 145,448.01 = 57,651.98 : x
  2. Step 2: Convert to fraction form
    105,395.54/145,448.01 = 57,651.98/x
  3. Step 3: Cross multiply
    105,395.54x = 145,448.01 × 57,651.98
  4. Step 4: Simplify right side
    105,395.54x = 8,385,365,036.32
  5. Step 5: Solve for x
    x = 8,385,365,036.32/105,395.54
  6. Step 6: Final answer
    x = 79,560.91

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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.