Home / 94,140.90-129,908.61-51,690.42

Finding the Fourth Proportional to 94,140.90, 129,908.61 and 51,690.42

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Solution

The fourth proportional to 94,140.90, 129,908.61 and 51,690.42 is: 71,329.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,140.90 : 129,908.61 = 51,690.42 : x
  2. Step 2: Convert to fraction form
    94,140.90/129,908.61 = 51,690.42/x
  3. Step 3: Cross multiply
    94,140.90x = 129,908.61 × 51,690.42
  4. Step 4: Simplify right side
    94,140.90x = 6,715,030,612.52
  5. Step 5: Solve for x
    x = 6,715,030,612.52/94,140.90
  6. Step 6: Final answer
    x = 71,329.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.