Home / 72,239.34-99,690.29-40,408.93

Finding the Fourth Proportional to 72,239.34, 99,690.29 and 40,408.93

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Solution

The fourth proportional to 72,239.34, 99,690.29 and 40,408.93 is: 55,764.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,239.34 : 99,690.29 = 40,408.93 : x
  2. Step 2: Convert to fraction form
    72,239.34/99,690.29 = 40,408.93/x
  3. Step 3: Cross multiply
    72,239.34x = 99,690.29 × 40,408.93
  4. Step 4: Simplify right side
    72,239.34x = 4,028,377,690.93
  5. Step 5: Solve for x
    x = 4,028,377,690.93/72,239.34
  6. Step 6: Final answer
    x = 55,764.32

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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.