Home / 72,344.13-99,832.58-40,077.43

Finding the Fourth Proportional to 72,344.13, 99,832.58 and 40,077.43

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Solution

The fourth proportional to 72,344.13, 99,832.58 and 40,077.43 is: 55,305.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,344.13 : 99,832.58 = 40,077.43 : x
  2. Step 2: Convert to fraction form
    72,344.13/99,832.58 = 40,077.43/x
  3. Step 3: Cross multiply
    72,344.13x = 99,832.58 × 40,077.43
  4. Step 4: Simplify right side
    72,344.13x = 4,001,032,737.51
  5. Step 5: Solve for x
    x = 4,001,032,737.51/72,344.13
  6. Step 6: Final answer
    x = 55,305.56

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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.