Home / 76,756.50-115,200.36-30,042.18

Finding the Fourth Proportional to 76,756.50, 115,200.36 and 30,042.18

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Solution

The fourth proportional to 76,756.50, 115,200.36 and 30,042.18 is: 45,088.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,756.50 : 115,200.36 = 30,042.18 : x
  2. Step 2: Convert to fraction form
    76,756.50/115,200.36 = 30,042.18/x
  3. Step 3: Cross multiply
    76,756.50x = 115,200.36 × 30,042.18
  4. Step 4: Simplify right side
    76,756.50x = 3,460,869,951.18
  5. Step 5: Solve for x
    x = 3,460,869,951.18/76,756.50
  6. Step 6: Final answer
    x = 45,088.95

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1.5x scale

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.