Home / 74,212.07-102,411.51-40,219.61

Finding the Fourth Proportional to 74,212.07, 102,411.51 and 40,219.61

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Solution

The fourth proportional to 74,212.07, 102,411.51 and 40,219.61 is: 55,502.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,212.07 : 102,411.51 = 40,219.61 : x
  2. Step 2: Convert to fraction form
    74,212.07/102,411.51 = 40,219.61/x
  3. Step 3: Cross multiply
    74,212.07x = 102,411.51 × 40,219.61
  4. Step 4: Simplify right side
    74,212.07x = 4,118,950,991.71
  5. Step 5: Solve for x
    x = 4,118,950,991.71/74,212.07
  6. Step 6: Final answer
    x = 55,502.44

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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.