Home / 66,153.20-99,240.72-30,650

Finding the Fourth Proportional to 66,153.20, 99,240.72 and 30,650

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Solution

The fourth proportional to 66,153.20, 99,240.72 and 30,650 is: 45,980.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,153.20 : 99,240.72 = 30,650 : x
  2. Step 2: Convert to fraction form
    66,153.20/99,240.72 = 30,650/x
  3. Step 3: Cross multiply
    66,153.20x = 99,240.72 × 30,650
  4. Step 4: Simplify right side
    66,153.20x = 3,041,728,068
  5. Step 5: Solve for x
    x = 3,041,728,068/66,153.20
  6. Step 6: Final answer
    x = 45,980.06

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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.