Home / 74,421.69-102,701.52-40,429.91

Finding the Fourth Proportional to 74,421.69, 102,701.52 and 40,429.91

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Solution

The fourth proportional to 74,421.69, 102,701.52 and 40,429.91 is: 55,793.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,421.69 : 102,701.52 = 40,429.91 : x
  2. Step 2: Convert to fraction form
    74,421.69/102,701.52 = 40,429.91/x
  3. Step 3: Cross multiply
    74,421.69x = 102,701.52 × 40,429.91
  4. Step 4: Simplify right side
    74,421.69x = 4,152,212,696.96
  5. Step 5: Solve for x
    x = 4,152,212,696.96/74,421.69
  6. Step 6: Final answer
    x = 55,793.04

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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.