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Finding the Fourth Proportional to 63,420.94, 95,130.72 and 19,045.80

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Solution

The fourth proportional to 63,420.94, 95,130.72 and 19,045.80 is: 28,568.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,420.94 : 95,130.72 = 19,045.80 : x
  2. Step 2: Convert to fraction form
    63,420.94/95,130.72 = 19,045.80/x
  3. Step 3: Cross multiply
    63,420.94x = 95,130.72 × 19,045.80
  4. Step 4: Simplify right side
    63,420.94x = 1,811,840,738.40
  5. Step 5: Solve for x
    x = 1,811,840,738.40/63,420.94
  6. Step 6: Final answer
    x = 28,568.49

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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.