Home / 74,891.39-103,354.28-40,902.98

Finding the Fourth Proportional to 74,891.39, 103,354.28 and 40,902.98

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Solution

The fourth proportional to 74,891.39, 103,354.28 and 40,902.98 is: 56,448.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,891.39 : 103,354.28 = 40,902.98 : x
  2. Step 2: Convert to fraction form
    74,891.39/103,354.28 = 40,902.98/x
  3. Step 3: Cross multiply
    74,891.39x = 103,354.28 × 40,902.98
  4. Step 4: Simplify right side
    74,891.39x = 4,227,497,479.85
  5. Step 5: Solve for x
    x = 4,227,497,479.85/74,891.39
  6. Step 6: Final answer
    x = 56,448.38

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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.