Home / 52,088.54-78,133.28-12,645.99

Finding the Fourth Proportional to 52,088.54, 78,133.28 and 12,645.99

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Solution

The fourth proportional to 52,088.54, 78,133.28 and 12,645.99 is: 18,969.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,088.54 : 78,133.28 = 12,645.99 : x
  2. Step 2: Convert to fraction form
    52,088.54/78,133.28 = 12,645.99/x
  3. Step 3: Cross multiply
    52,088.54x = 78,133.28 × 12,645.99
  4. Step 4: Simplify right side
    52,088.54x = 988,072,614.32
  5. Step 5: Solve for x
    x = 988,072,614.32/52,088.54
  6. Step 6: Final answer
    x = 18,969.10

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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.