Home / 172,420.62-258,635.28-47,762.70

Finding the Fourth Proportional to 172,420.62, 258,635.28 and 47,762.70

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Solution

The fourth proportional to 172,420.62, 258,635.28 and 47,762.70 is: 71,645.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,420.62 : 258,635.28 = 47,762.70 : x
  2. Step 2: Convert to fraction form
    172,420.62/258,635.28 = 47,762.70/x
  3. Step 3: Cross multiply
    172,420.62x = 258,635.28 × 47,762.70
  4. Step 4: Simplify right side
    172,420.62x = 12,353,119,288.06
  5. Step 5: Solve for x
    x = 12,353,119,288.06/172,420.62
  6. Step 6: Final answer
    x = 71,645.26

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1.5x scale

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.