Home / 66,305.20-99,393.90-42,545.74

Finding the Fourth Proportional to 66,305.20, 99,393.90 and 42,545.74

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Solution

The fourth proportional to 66,305.20, 99,393.90 and 42,545.74 is: 63,777.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,305.20 : 99,393.90 = 42,545.74 : x
  2. Step 2: Convert to fraction form
    66,305.20/99,393.90 = 42,545.74/x
  3. Step 3: Cross multiply
    66,305.20x = 99,393.90 × 42,545.74
  4. Step 4: Simplify right side
    66,305.20x = 4,228,787,026.99
  5. Step 5: Solve for x
    x = 4,228,787,026.99/66,305.20
  6. Step 6: Final answer
    x = 63,777.61

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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.