Home / 76,263.43-105,247.05-42,272.64

Finding the Fourth Proportional to 76,263.43, 105,247.05 and 42,272.64

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Solution

The fourth proportional to 76,263.43, 105,247.05 and 42,272.64 is: 58,338.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,263.43 : 105,247.05 = 42,272.64 : x
  2. Step 2: Convert to fraction form
    76,263.43/105,247.05 = 42,272.64/x
  3. Step 3: Cross multiply
    76,263.43x = 105,247.05 × 42,272.64
  4. Step 4: Simplify right side
    76,263.43x = 4,449,070,444.35
  5. Step 5: Solve for x
    x = 4,449,070,444.35/76,263.43
  6. Step 6: Final answer
    x = 58,338.19

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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.