Home / 66,312.20-99,468.30-55,814.60

Finding the Fourth Proportional to 66,312.20, 99,468.30 and 55,814.60

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Solution

The fourth proportional to 66,312.20, 99,468.30 and 55,814.60 is: 83,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,312.20 : 99,468.30 = 55,814.60 : x
  2. Step 2: Convert to fraction form
    66,312.20/99,468.30 = 55,814.60/x
  3. Step 3: Cross multiply
    66,312.20x = 99,468.30 × 55,814.60
  4. Step 4: Simplify right side
    66,312.20x = 5,551,783,377.18
  5. Step 5: Solve for x
    x = 5,551,783,377.18/66,312.20
  6. Step 6: Final answer
    x = 83,721.90

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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.