Home / 74,834.61-112,192.31-43,208.79

Finding the Fourth Proportional to 74,834.61, 112,192.31 and 43,208.79

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Solution

The fourth proportional to 74,834.61, 112,192.31 and 43,208.79 is: 64,778.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,834.61 : 112,192.31 = 43,208.79 : x
  2. Step 2: Convert to fraction form
    74,834.61/112,192.31 = 43,208.79/x
  3. Step 3: Cross multiply
    74,834.61x = 112,192.31 × 43,208.79
  4. Step 4: Simplify right side
    74,834.61x = 4,847,693,746.36
  5. Step 5: Solve for x
    x = 4,847,693,746.36/74,834.61
  6. Step 6: Final answer
    x = 64,778.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.