Home / 72,043.02-99,410.22-40,213.26

Finding the Fourth Proportional to 72,043.02, 99,410.22 and 40,213.26

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Solution

The fourth proportional to 72,043.02, 99,410.22 and 40,213.26 is: 55,489.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,043.02 : 99,410.22 = 40,213.26 : x
  2. Step 2: Convert to fraction form
    72,043.02/99,410.22 = 40,213.26/x
  3. Step 3: Cross multiply
    72,043.02x = 99,410.22 × 40,213.26
  4. Step 4: Simplify right side
    72,043.02x = 3,997,609,023.52
  5. Step 5: Solve for x
    x = 3,997,609,023.52/72,043.02
  6. Step 6: Final answer
    x = 55,489.19

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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.