Home / 76,126.11-105,052.59-42,133.92

Finding the Fourth Proportional to 76,126.11, 105,052.59 and 42,133.92

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Solution

The fourth proportional to 76,126.11, 105,052.59 and 42,133.92 is: 58,144.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,126.11 : 105,052.59 = 42,133.92 : x
  2. Step 2: Convert to fraction form
    76,126.11/105,052.59 = 42,133.92/x
  3. Step 3: Cross multiply
    76,126.11x = 105,052.59 × 42,133.92
  4. Step 4: Simplify right side
    76,126.11x = 4,426,277,422.85
  5. Step 5: Solve for x
    x = 4,426,277,422.85/76,126.11
  6. Step 6: Final answer
    x = 58,144.01

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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.