Home / 79,031.32-118,522.31-26,428.52

Finding the Fourth Proportional to 79,031.32, 118,522.31 and 26,428.52

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Solution

The fourth proportional to 79,031.32, 118,522.31 and 26,428.52 is: 39,634.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,031.32 : 118,522.31 = 26,428.52 : x
  2. Step 2: Convert to fraction form
    79,031.32/118,522.31 = 26,428.52/x
  3. Step 3: Cross multiply
    79,031.32x = 118,522.31 × 26,428.52
  4. Step 4: Simplify right side
    79,031.32x = 3,132,369,240.28
  5. Step 5: Solve for x
    x = 3,132,369,240.28/79,031.32
  6. Step 6: Final answer
    x = 39,634.53

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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.