Home / 71,845.02-99,143.64-40,012.26

Finding the Fourth Proportional to 71,845.02, 99,143.64 and 40,012.26

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Solution

The fourth proportional to 71,845.02, 99,143.64 and 40,012.26 is: 55,215.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,845.02 : 99,143.64 = 40,012.26 : x
  2. Step 2: Convert to fraction form
    71,845.02/99,143.64 = 40,012.26/x
  3. Step 3: Cross multiply
    71,845.02x = 99,143.64 × 40,012.26
  4. Step 4: Simplify right side
    71,845.02x = 3,966,961,101.03
  5. Step 5: Solve for x
    x = 3,966,961,101.03/71,845.02
  6. Step 6: Final answer
    x = 55,215.53

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1.5x scale

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.