Home / 66,199.20-99,298.80-42,579.60

Finding the Fourth Proportional to 66,199.20, 99,298.80 and 42,579.60

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Solution

The fourth proportional to 66,199.20, 99,298.80 and 42,579.60 is: 63,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,199.20 : 99,298.80 = 42,579.60 : x
  2. Step 2: Convert to fraction form
    66,199.20/99,298.80 = 42,579.60/x
  3. Step 3: Cross multiply
    66,199.20x = 99,298.80 × 42,579.60
  4. Step 4: Simplify right side
    66,199.20x = 4,228,103,184.48
  5. Step 5: Solve for x
    x = 4,228,103,184.48/66,199.20
  6. Step 6: Final answer
    x = 63,869.40

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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.