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Finding the Fourth Proportional to 66,200.10, 99,300.15 and 49,360.20

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Solution

The fourth proportional to 66,200.10, 99,300.15 and 49,360.20 is: 74,040.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,200.10 : 99,300.15 = 49,360.20 : x
  2. Step 2: Convert to fraction form
    66,200.10/99,300.15 = 49,360.20/x
  3. Step 3: Cross multiply
    66,200.10x = 99,300.15 × 49,360.20
  4. Step 4: Simplify right side
    66,200.10x = 4,901,475,264.03
  5. Step 5: Solve for x
    x = 4,901,475,264.03/66,200.10
  6. Step 6: Final answer
    x = 74,040.30

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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.