Home / 81,662.85-112,721.15-52,931.81

Finding the Fourth Proportional to 81,662.85, 112,721.15 and 52,931.81

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Solution

The fourth proportional to 81,662.85, 112,721.15 and 52,931.81 is: 73,063.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,662.85 : 112,721.15 = 52,931.81 : x
  2. Step 2: Convert to fraction form
    81,662.85/112,721.15 = 52,931.81/x
  3. Step 3: Cross multiply
    81,662.85x = 112,721.15 × 52,931.81
  4. Step 4: Simplify right side
    81,662.85x = 5,966,534,908.91
  5. Step 5: Solve for x
    x = 5,966,534,908.91/81,662.85
  6. Step 6: Final answer
    x = 73,063.03

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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.