Home / 72,029.23-99,405.96-40,202.91

Finding the Fourth Proportional to 72,029.23, 99,405.96 and 40,202.91

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Solution

The fourth proportional to 72,029.23, 99,405.96 and 40,202.91 is: 55,483.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,029.23 : 99,405.96 = 40,202.91 : x
  2. Step 2: Convert to fraction form
    72,029.23/99,405.96 = 40,202.91/x
  3. Step 3: Cross multiply
    72,029.23x = 99,405.96 × 40,202.91
  4. Step 4: Simplify right side
    72,029.23x = 3,996,408,863.34
  5. Step 5: Solve for x
    x = 3,996,408,863.34/72,029.23
  6. Step 6: Final answer
    x = 55,483.15

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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.