Home / 83,639.46-125,417.64-30,329.30

Finding the Fourth Proportional to 83,639.46, 125,417.64 and 30,329.30

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Solution

The fourth proportional to 83,639.46, 125,417.64 and 30,329.30 is: 45,478.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,639.46 : 125,417.64 = 30,329.30 : x
  2. Step 2: Convert to fraction form
    83,639.46/125,417.64 = 30,329.30/x
  3. Step 3: Cross multiply
    83,639.46x = 125,417.64 × 30,329.30
  4. Step 4: Simplify right side
    83,639.46x = 3,803,829,228.85
  5. Step 5: Solve for x
    x = 3,803,829,228.85/83,639.46
  6. Step 6: Final answer
    x = 45,478.88

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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.