Home / 73,920.42-102,010.19-40,386.42

Finding the Fourth Proportional to 73,920.42, 102,010.19 and 40,386.42

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Solution

The fourth proportional to 73,920.42, 102,010.19 and 40,386.42 is: 55,733.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,920.42 : 102,010.19 = 40,386.42 : x
  2. Step 2: Convert to fraction form
    73,920.42/102,010.19 = 40,386.42/x
  3. Step 3: Cross multiply
    73,920.42x = 102,010.19 × 40,386.42
  4. Step 4: Simplify right side
    73,920.42x = 4,119,826,175.69
  5. Step 5: Solve for x
    x = 4,119,826,175.69/73,920.42
  6. Step 6: Final answer
    x = 55,733.26

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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.