Home / 77,401.20-106,803.48-45,563.76

Finding the Fourth Proportional to 77,401.20, 106,803.48 and 45,563.76

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Solution

The fourth proportional to 77,401.20, 106,803.48 and 45,563.76 is: 62,872.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,401.20 : 106,803.48 = 45,563.76 : x
  2. Step 2: Convert to fraction form
    77,401.20/106,803.48 = 45,563.76/x
  3. Step 3: Cross multiply
    77,401.20x = 106,803.48 × 45,563.76
  4. Step 4: Simplify right side
    77,401.20x = 4,866,368,129.88
  5. Step 5: Solve for x
    x = 4,866,368,129.88/77,401.20
  6. Step 6: Final answer
    x = 62,872.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.