Home / 78,024.42-117,023.31-25,421.94

Finding the Fourth Proportional to 78,024.42, 117,023.31 and 25,421.94

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Solution

The fourth proportional to 78,024.42, 117,023.31 and 25,421.94 is: 38,128.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,024.42 : 117,023.31 = 25,421.94 : x
  2. Step 2: Convert to fraction form
    78,024.42/117,023.31 = 25,421.94/x
  3. Step 3: Cross multiply
    78,024.42x = 117,023.31 × 25,421.94
  4. Step 4: Simplify right side
    78,024.42x = 2,974,959,565.42
  5. Step 5: Solve for x
    x = 2,974,959,565.42/78,024.42
  6. Step 6: Final answer
    x = 38,128.57

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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.