Home / 105,362.37-145,397.84-57,612.87

Finding the Fourth Proportional to 105,362.37, 145,397.84 and 57,612.87

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Solution

The fourth proportional to 105,362.37, 145,397.84 and 57,612.87 is: 79,504.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,362.37 : 145,397.84 = 57,612.87 : x
  2. Step 2: Convert to fraction form
    105,362.37/145,397.84 = 57,612.87/x
  3. Step 3: Cross multiply
    105,362.37x = 145,397.84 × 57,612.87
  4. Step 4: Simplify right side
    105,362.37x = 8,376,786,566.14
  5. Step 5: Solve for x
    x = 8,376,786,566.14/105,362.37
  6. Step 6: Final answer
    x = 79,504.54

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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.