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Finding the Fourth Proportional to 43,060, 64,587.60 and 13,474.36

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Solution

The fourth proportional to 43,060, 64,587.60 and 13,474.36 is: 20,210.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,060 : 64,587.60 = 13,474.36 : x
  2. Step 2: Convert to fraction form
    43,060/64,587.60 = 13,474.36/x
  3. Step 3: Cross multiply
    43,060x = 64,587.60 × 13,474.36
  4. Step 4: Simplify right side
    43,060x = 870,276,573.94
  5. Step 5: Solve for x
    x = 870,276,573.94/43,060
  6. Step 6: Final answer
    x = 20,210.79

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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.