Home / 42,723.60-64,085.40-18,096.40

Finding the Fourth Proportional to 42,723.60, 64,085.40 and 18,096.40

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Solution

The fourth proportional to 42,723.60, 64,085.40 and 18,096.40 is: 27,144.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,723.60 : 64,085.40 = 18,096.40 : x
  2. Step 2: Convert to fraction form
    42,723.60/64,085.40 = 18,096.40/x
  3. Step 3: Cross multiply
    42,723.60x = 64,085.40 × 18,096.40
  4. Step 4: Simplify right side
    42,723.60x = 1,159,715,032.56
  5. Step 5: Solve for x
    x = 1,159,715,032.56/42,723.60
  6. Step 6: Final answer
    x = 27,144.60

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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.