Home / 74,881.69-103,336.91-40,890.24

Finding the Fourth Proportional to 74,881.69, 103,336.91 and 40,890.24

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Solution

The fourth proportional to 74,881.69, 103,336.91 and 40,890.24 is: 56,428.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,881.69 : 103,336.91 = 40,890.24 : x
  2. Step 2: Convert to fraction form
    74,881.69/103,336.91 = 40,890.24/x
  3. Step 3: Cross multiply
    74,881.69x = 103,336.91 × 40,890.24
  4. Step 4: Simplify right side
    74,881.69x = 4,225,470,922.98
  5. Step 5: Solve for x
    x = 4,225,470,922.98/74,881.69
  6. Step 6: Final answer
    x = 56,428.63

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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.