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Finding the Fourth Proportional to 70,267.04, 105,400.56 and 28,714

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Solution

The fourth proportional to 70,267.04, 105,400.56 and 28,714 is: 43,071.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,267.04 : 105,400.56 = 28,714 : x
  2. Step 2: Convert to fraction form
    70,267.04/105,400.56 = 28,714/x
  3. Step 3: Cross multiply
    70,267.04x = 105,400.56 × 28,714
  4. Step 4: Simplify right side
    70,267.04x = 3,026,471,679.84
  5. Step 5: Solve for x
    x = 3,026,471,679.84/70,267.04
  6. Step 6: Final answer
    x = 43,071.00

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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.