Home / 45,000.21-67,500.09-42,259.80

Finding the Fourth Proportional to 45,000.21, 67,500.09 and 42,259.80

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Solution

The fourth proportional to 45,000.21, 67,500.09 and 42,259.80 is: 63,389.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,000.21 : 67,500.09 = 42,259.80 : x
  2. Step 2: Convert to fraction form
    45,000.21/67,500.09 = 42,259.80/x
  3. Step 3: Cross multiply
    45,000.21x = 67,500.09 × 42,259.80
  4. Step 4: Simplify right side
    45,000.21x = 2,852,540,303.38
  5. Step 5: Solve for x
    x = 2,852,540,303.38/45,000.21
  6. Step 6: Final answer
    x = 63,389.49

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Similar ratio
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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.