Home / 81,822.05-112,912.47-53,527.13

Finding the Fourth Proportional to 81,822.05, 112,912.47 and 53,527.13

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Solution

The fourth proportional to 81,822.05, 112,912.47 and 53,527.13 is: 73,866.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,822.05 : 112,912.47 = 53,527.13 : x
  2. Step 2: Convert to fraction form
    81,822.05/112,912.47 = 53,527.13/x
  3. Step 3: Cross multiply
    81,822.05x = 112,912.47 × 53,527.13
  4. Step 4: Simplify right side
    81,822.05x = 6,043,880,460.31
  5. Step 5: Solve for x
    x = 6,043,880,460.31/81,822.05
  6. Step 6: Final answer
    x = 73,866.16

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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.