Home / 72,110.12-99,502.08-40,274.96

Finding the Fourth Proportional to 72,110.12, 99,502.08 and 40,274.96

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Solution

The fourth proportional to 72,110.12, 99,502.08 and 40,274.96 is: 55,573.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,110.12 : 99,502.08 = 40,274.96 : x
  2. Step 2: Convert to fraction form
    72,110.12/99,502.08 = 40,274.96/x
  3. Step 3: Cross multiply
    72,110.12x = 99,502.08 × 40,274.96
  4. Step 4: Simplify right side
    72,110.12x = 4,007,442,291.92
  5. Step 5: Solve for x
    x = 4,007,442,291.92/72,110.12
  6. Step 6: Final answer
    x = 55,573.92

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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.