Home / 71,841.07-99,140.64-41,643.90

Finding the Fourth Proportional to 71,841.07, 99,140.64 and 41,643.90

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Solution

The fourth proportional to 71,841.07, 99,140.64 and 41,643.90 is: 57,468.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,841.07 : 99,140.64 = 41,643.90 : x
  2. Step 2: Convert to fraction form
    71,841.07/99,140.64 = 41,643.90/x
  3. Step 3: Cross multiply
    71,841.07x = 99,140.64 × 41,643.90
  4. Step 4: Simplify right side
    71,841.07x = 4,128,602,898.10
  5. Step 5: Solve for x
    x = 4,128,602,898.10/71,841.07
  6. Step 6: Final answer
    x = 57,468.56

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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.