Home / 79,393.12-119,113.07-31,983.81

Finding the Fourth Proportional to 79,393.12, 119,113.07 and 31,983.81

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Solution

The fourth proportional to 79,393.12, 119,113.07 and 31,983.81 is: 47,985.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,393.12 : 119,113.07 = 31,983.81 : x
  2. Step 2: Convert to fraction form
    79,393.12/119,113.07 = 31,983.81/x
  3. Step 3: Cross multiply
    79,393.12x = 119,113.07 × 31,983.81
  4. Step 4: Simplify right side
    79,393.12x = 3,809,689,639.48
  5. Step 5: Solve for x
    x = 3,809,689,639.48/79,393.12
  6. Step 6: Final answer
    x = 47,985.14

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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.