Home / 72,166.08-99,588.90-40,334.94

Finding the Fourth Proportional to 72,166.08, 99,588.90 and 40,334.94

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Solution

The fourth proportional to 72,166.08, 99,588.90 and 40,334.94 is: 55,662.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,166.08 : 99,588.90 = 40,334.94 : x
  2. Step 2: Convert to fraction form
    72,166.08/99,588.90 = 40,334.94/x
  3. Step 3: Cross multiply
    72,166.08x = 99,588.90 × 40,334.94
  4. Step 4: Simplify right side
    72,166.08x = 4,016,912,306.17
  5. Step 5: Solve for x
    x = 4,016,912,306.17/72,166.08
  6. Step 6: Final answer
    x = 55,662.05

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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.