Home / 74,390.34-111,444.78-57,668.43

Finding the Fourth Proportional to 74,390.34, 111,444.78 and 57,668.43

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Solution

The fourth proportional to 74,390.34, 111,444.78 and 57,668.43 is: 86,393.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,390.34 : 111,444.78 = 57,668.43 : x
  2. Step 2: Convert to fraction form
    74,390.34/111,444.78 = 57,668.43/x
  3. Step 3: Cross multiply
    74,390.34x = 111,444.78 × 57,668.43
  4. Step 4: Simplify right side
    74,390.34x = 6,426,845,494.30
  5. Step 5: Solve for x
    x = 6,426,845,494.30/74,390.34
  6. Step 6: Final answer
    x = 86,393.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.