Home / 72,017.11-99,401.40-43,746.49

Finding the Fourth Proportional to 72,017.11, 99,401.40 and 43,746.49

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Solution

The fourth proportional to 72,017.11, 99,401.40 and 43,746.49 is: 60,380.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,017.11 : 99,401.40 = 43,746.49 : x
  2. Step 2: Convert to fraction form
    72,017.11/99,401.40 = 43,746.49/x
  3. Step 3: Cross multiply
    72,017.11x = 99,401.40 × 43,746.49
  4. Step 4: Simplify right side
    72,017.11x = 4,348,462,351.09
  5. Step 5: Solve for x
    x = 4,348,462,351.09/72,017.11
  6. Step 6: Final answer
    x = 60,380.96

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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.