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Finding the Fourth Proportional to 79,569.16, 109,802.48 and 43,758.80

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Solution

The fourth proportional to 79,569.16, 109,802.48 and 43,758.80 is: 60,385.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,569.16 : 109,802.48 = 43,758.80 : x
  2. Step 2: Convert to fraction form
    79,569.16/109,802.48 = 43,758.80/x
  3. Step 3: Cross multiply
    79,569.16x = 109,802.48 × 43,758.80
  4. Step 4: Simplify right side
    79,569.16x = 4,804,824,761.82
  5. Step 5: Solve for x
    x = 4,804,824,761.82/79,569.16
  6. Step 6: Final answer
    x = 60,385.52

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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.