Home / 70,687.15-97,565.07-40,489.81

Finding the Fourth Proportional to 70,687.15, 97,565.07 and 40,489.81

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Solution

The fourth proportional to 70,687.15, 97,565.07 and 40,489.81 is: 55,885.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,687.15 : 97,565.07 = 40,489.81 : x
  2. Step 2: Convert to fraction form
    70,687.15/97,565.07 = 40,489.81/x
  3. Step 3: Cross multiply
    70,687.15x = 97,565.07 × 40,489.81
  4. Step 4: Simplify right side
    70,687.15x = 3,950,391,146.94
  5. Step 5: Solve for x
    x = 3,950,391,146.94/70,687.15
  6. Step 6: Final answer
    x = 55,885.56

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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.