Home / 69,660.96-96,126.80-40,981.77

Finding the Fourth Proportional to 69,660.96, 96,126.80 and 40,981.77

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Solution

The fourth proportional to 69,660.96, 96,126.80 and 40,981.77 is: 56,551.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,660.96 : 96,126.80 = 40,981.77 : x
  2. Step 2: Convert to fraction form
    69,660.96/96,126.80 = 40,981.77/x
  3. Step 3: Cross multiply
    69,660.96x = 96,126.80 × 40,981.77
  4. Step 4: Simplify right side
    69,660.96x = 3,939,446,030.26
  5. Step 5: Solve for x
    x = 3,939,446,030.26/69,660.96
  6. Step 6: Final answer
    x = 56,551.70

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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.