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Finding the Fourth Proportional to 75,469.77, 113,154.98 and 42,238.89

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Solution

The fourth proportional to 75,469.77, 113,154.98 and 42,238.89 is: 63,330.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,469.77 : 113,154.98 = 42,238.89 : x
  2. Step 2: Convert to fraction form
    75,469.77/113,154.98 = 42,238.89/x
  3. Step 3: Cross multiply
    75,469.77x = 113,154.98 × 42,238.89
  4. Step 4: Simplify right side
    75,469.77x = 4,779,540,541.98
  5. Step 5: Solve for x
    x = 4,779,540,541.98/75,469.77
  6. Step 6: Final answer
    x = 63,330.53

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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.