Home / 77,453.46-106,189.70-76,053.78

Finding the Fourth Proportional to 77,453.46, 106,189.70 and 76,053.78

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Solution

The fourth proportional to 77,453.46, 106,189.70 and 76,053.78 is: 104,270.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,453.46 : 106,189.70 = 76,053.78 : x
  2. Step 2: Convert to fraction form
    77,453.46/106,189.70 = 76,053.78/x
  3. Step 3: Cross multiply
    77,453.46x = 106,189.70 × 76,053.78
  4. Step 4: Simplify right side
    77,453.46x = 8,076,127,701.80
  5. Step 5: Solve for x
    x = 8,076,127,701.80/77,453.46
  6. Step 6: Final answer
    x = 104,270.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.