Home / 74,637.60-111,956.40-43,144.80

Finding the Fourth Proportional to 74,637.60, 111,956.40 and 43,144.80

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Solution

The fourth proportional to 74,637.60, 111,956.40 and 43,144.80 is: 64,717.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,637.60 : 111,956.40 = 43,144.80 : x
  2. Step 2: Convert to fraction form
    74,637.60/111,956.40 = 43,144.80/x
  3. Step 3: Cross multiply
    74,637.60x = 111,956.40 × 43,144.80
  4. Step 4: Simplify right side
    74,637.60x = 4,830,336,486.72
  5. Step 5: Solve for x
    x = 4,830,336,486.72/74,637.60
  6. Step 6: Final answer
    x = 64,717.20

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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.