Home / 87,088.54-119,914-76,271.06

Finding the Fourth Proportional to 87,088.54, 119,914 and 76,271.06

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Solution

The fourth proportional to 87,088.54, 119,914 and 76,271.06 is: 105,019.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,088.54 : 119,914 = 76,271.06 : x
  2. Step 2: Convert to fraction form
    87,088.54/119,914 = 76,271.06/x
  3. Step 3: Cross multiply
    87,088.54x = 119,914 × 76,271.06
  4. Step 4: Simplify right side
    87,088.54x = 9,145,967,888.84
  5. Step 5: Solve for x
    x = 9,145,967,888.84/87,088.54
  6. Step 6: Final answer
    x = 105,019.19

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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.