Home / 115,401.15-172,788.93-59,880.51

Finding the Fourth Proportional to 115,401.15, 172,788.93 and 59,880.51

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Solution

The fourth proportional to 115,401.15, 172,788.93 and 59,880.51 is: 89,658.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,401.15 : 172,788.93 = 59,880.51 : x
  2. Step 2: Convert to fraction form
    115,401.15/172,788.93 = 59,880.51/x
  3. Step 3: Cross multiply
    115,401.15x = 172,788.93 × 59,880.51
  4. Step 4: Simplify right side
    115,401.15x = 10,346,689,250.75
  5. Step 5: Solve for x
    x = 10,346,689,250.75/115,401.15
  6. Step 6: Final answer
    x = 89,658.46

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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.