Home / 171,385.04-257,089.56-53,040.80

Finding the Fourth Proportional to 171,385.04, 257,089.56 and 53,040.80

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Solution

The fourth proportional to 171,385.04, 257,089.56 and 53,040.80 is: 79,564.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,385.04 : 257,089.56 = 53,040.80 : x
  2. Step 2: Convert to fraction form
    171,385.04/257,089.56 = 53,040.80/x
  3. Step 3: Cross multiply
    171,385.04x = 257,089.56 × 53,040.80
  4. Step 4: Simplify right side
    171,385.04x = 13,636,235,934.05
  5. Step 5: Solve for x
    x = 13,636,235,934.05/171,385.04
  6. Step 6: Final answer
    x = 79,564.91

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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.