Home / 74,561.83-102,898.94-42,730.81

Finding the Fourth Proportional to 74,561.83, 102,898.94 and 42,730.81

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Solution

The fourth proportional to 74,561.83, 102,898.94 and 42,730.81 is: 58,970.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,561.83 : 102,898.94 = 42,730.81 : x
  2. Step 2: Convert to fraction form
    74,561.83/102,898.94 = 42,730.81/x
  3. Step 3: Cross multiply
    74,561.83x = 102,898.94 × 42,730.81
  4. Step 4: Simplify right side
    74,561.83x = 4,396,954,823.80
  5. Step 5: Solve for x
    x = 4,396,954,823.80/74,561.83
  6. Step 6: Final answer
    x = 58,970.58

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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.