Home / 57,030.40-78,701.49-32,836.12

Finding the Fourth Proportional to 57,030.40, 78,701.49 and 32,836.12

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Solution

The fourth proportional to 57,030.40, 78,701.49 and 32,836.12 is: 45,313.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,030.40 : 78,701.49 = 32,836.12 : x
  2. Step 2: Convert to fraction form
    57,030.40/78,701.49 = 32,836.12/x
  3. Step 3: Cross multiply
    57,030.40x = 78,701.49 × 32,836.12
  4. Step 4: Simplify right side
    57,030.40x = 2,584,251,569.82
  5. Step 5: Solve for x
    x = 2,584,251,569.82/57,030.40
  6. Step 6: Final answer
    x = 45,313.58

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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.