Home / 74,274.38-102,498.69-40,282.85

Finding the Fourth Proportional to 74,274.38, 102,498.69 and 40,282.85

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Solution

The fourth proportional to 74,274.38, 102,498.69 and 40,282.85 is: 55,590.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,274.38 : 102,498.69 = 40,282.85 : x
  2. Step 2: Convert to fraction form
    74,274.38/102,498.69 = 40,282.85/x
  3. Step 3: Cross multiply
    74,274.38x = 102,498.69 × 40,282.85
  4. Step 4: Simplify right side
    74,274.38x = 4,128,938,841.97
  5. Step 5: Solve for x
    x = 4,128,938,841.97/74,274.38
  6. Step 6: Final answer
    x = 55,590.35

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1.5x scale

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.