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Finding the Fourth Proportional to 63,089, 87,064.08 and 40,771.88

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Solution

The fourth proportional to 63,089, 87,064.08 and 40,771.88 is: 56,266.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,089 : 87,064.08 = 40,771.88 : x
  2. Step 2: Convert to fraction form
    63,089/87,064.08 = 40,771.88/x
  3. Step 3: Cross multiply
    63,089x = 87,064.08 × 40,771.88
  4. Step 4: Simplify right side
    63,089x = 3,549,766,222.07
  5. Step 5: Solve for x
    x = 3,549,766,222.07/63,089
  6. Step 6: Final answer
    x = 56,266.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.