Home / 79,031.45-118,522.50-26,428.65

Finding the Fourth Proportional to 79,031.45, 118,522.50 and 26,428.65

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Solution

The fourth proportional to 79,031.45, 118,522.50 and 26,428.65 is: 39,634.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,031.45 : 118,522.50 = 26,428.65 : x
  2. Step 2: Convert to fraction form
    79,031.45/118,522.50 = 26,428.65/x
  3. Step 3: Cross multiply
    79,031.45x = 118,522.50 × 26,428.65
  4. Step 4: Simplify right side
    79,031.45x = 3,132,389,537.48
  5. Step 5: Solve for x
    x = 3,132,389,537.48/79,031.45
  6. Step 6: Final answer
    x = 39,634.72

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1.5x scale

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.