Home / 105,596.40-145,722.60-57,852.72

Finding the Fourth Proportional to 105,596.40, 145,722.60 and 57,852.72

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Solution

The fourth proportional to 105,596.40, 145,722.60 and 57,852.72 is: 79,836.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,596.40 : 145,722.60 = 57,852.72 : x
  2. Step 2: Convert to fraction form
    105,596.40/145,722.60 = 57,852.72/x
  3. Step 3: Cross multiply
    105,596.40x = 145,722.60 × 57,852.72
  4. Step 4: Simplify right side
    105,596.40x = 8,430,448,775.47
  5. Step 5: Solve for x
    x = 8,430,448,775.47/105,596.40
  6. Step 6: Final answer
    x = 79,836.52

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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.