Home / 77,274.88-106,622.94-45,432.16

Finding the Fourth Proportional to 77,274.88, 106,622.94 and 45,432.16

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Solution

The fourth proportional to 77,274.88, 106,622.94 and 45,432.16 is: 62,686.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,274.88 : 106,622.94 = 45,432.16 : x
  2. Step 2: Convert to fraction form
    77,274.88/106,622.94 = 45,432.16/x
  3. Step 3: Cross multiply
    77,274.88x = 106,622.94 × 45,432.16
  4. Step 4: Simplify right side
    77,274.88x = 4,844,110,469.75
  5. Step 5: Solve for x
    x = 4,844,110,469.75/77,274.88
  6. Step 6: Final answer
    x = 62,686.74

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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.