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Finding the Fourth Proportional to 71,070.93, 106,605.87 and 28,941.11

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Solution

The fourth proportional to 71,070.93, 106,605.87 and 28,941.11 is: 43,411.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,070.93 : 106,605.87 = 28,941.11 : x
  2. Step 2: Convert to fraction form
    71,070.93/106,605.87 = 28,941.11/x
  3. Step 3: Cross multiply
    71,070.93x = 106,605.87 × 28,941.11
  4. Step 4: Simplify right side
    71,070.93x = 3,085,292,131.32
  5. Step 5: Solve for x
    x = 3,085,292,131.32/71,070.93
  6. Step 6: Final answer
    x = 43,411.45

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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.