Home / 79,973.64-119,933.16-57,720.92

Finding the Fourth Proportional to 79,973.64, 119,933.16 and 57,720.92

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Solution

The fourth proportional to 79,973.64, 119,933.16 and 57,720.92 is: 86,561.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,973.64 : 119,933.16 = 57,720.92 : x
  2. Step 2: Convert to fraction form
    79,973.64/119,933.16 = 57,720.92/x
  3. Step 3: Cross multiply
    79,973.64x = 119,933.16 × 57,720.92
  4. Step 4: Simplify right side
    79,973.64x = 6,922,652,333.71
  5. Step 5: Solve for x
    x = 6,922,652,333.71/79,973.64
  6. Step 6: Final answer
    x = 86,561.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.