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Finding the Fourth Proportional to 80,710.16, 111,349.93 and 50,484

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Solution

The fourth proportional to 80,710.16, 111,349.93 and 50,484 is: 69,649.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,710.16 : 111,349.93 = 50,484 : x
  2. Step 2: Convert to fraction form
    80,710.16/111,349.93 = 50,484/x
  3. Step 3: Cross multiply
    80,710.16x = 111,349.93 × 50,484
  4. Step 4: Simplify right side
    80,710.16x = 5,621,389,866.12
  5. Step 5: Solve for x
    x = 5,621,389,866.12/80,710.16
  6. Step 6: Final answer
    x = 69,649.10

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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.