Home / 79,871.57-119,762.40-26,535.00

Finding the Fourth Proportional to 79,871.57, 119,762.40 and 26,535.00

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Solution

The fourth proportional to 79,871.57, 119,762.40 and 26,535.00 is: 39,787.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,871.57 : 119,762.40 = 26,535.00 : x
  2. Step 2: Convert to fraction form
    79,871.57/119,762.40 = 26,535.00/x
  3. Step 3: Cross multiply
    79,871.57x = 119,762.40 × 26,535.00
  4. Step 4: Simplify right side
    79,871.57x = 3,177,894,934.40
  5. Step 5: Solve for x
    x = 3,177,894,934.40/79,871.57
  6. Step 6: Final answer
    x = 39,787.56

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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.