Home / 172,319.99-258,480.08-54,000.59

Finding the Fourth Proportional to 172,319.99, 258,480.08 and 54,000.59

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Solution

The fourth proportional to 172,319.99, 258,480.08 and 54,000.59 is: 81,000.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,319.99 : 258,480.08 = 54,000.59 : x
  2. Step 2: Convert to fraction form
    172,319.99/258,480.08 = 54,000.59/x
  3. Step 3: Cross multiply
    172,319.99x = 258,480.08 × 54,000.59
  4. Step 4: Simplify right side
    172,319.99x = 13,958,076,823.25
  5. Step 5: Solve for x
    x = 13,958,076,823.25/172,319.99
  6. Step 6: Final answer
    x = 81,000.91

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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.