Home / 81,576.09-112,597.02-53,281.17

Finding the Fourth Proportional to 81,576.09, 112,597.02 and 53,281.17

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Solution

The fourth proportional to 81,576.09, 112,597.02 and 53,281.17 is: 73,542.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,576.09 : 112,597.02 = 53,281.17 : x
  2. Step 2: Convert to fraction form
    81,576.09/112,597.02 = 53,281.17/x
  3. Step 3: Cross multiply
    81,576.09x = 112,597.02 × 53,281.17
  4. Step 4: Simplify right side
    81,576.09x = 5,999,300,964.11
  5. Step 5: Solve for x
    x = 5,999,300,964.11/81,576.09
  6. Step 6: Final answer
    x = 73,542.39

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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.