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Finding the Fourth Proportional to 72,264.27, 108,130.32 and 43,699.35

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Solution

The fourth proportional to 72,264.27, 108,130.32 and 43,699.35 is: 65,388.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,264.27 : 108,130.32 = 43,699.35 : x
  2. Step 2: Convert to fraction form
    72,264.27/108,130.32 = 43,699.35/x
  3. Step 3: Cross multiply
    72,264.27x = 108,130.32 × 43,699.35
  4. Step 4: Simplify right side
    72,264.27x = 4,725,224,699.29
  5. Step 5: Solve for x
    x = 4,725,224,699.29/72,264.27
  6. Step 6: Final answer
    x = 65,388.12

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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.