Home / 66,403.24-99,552.70-45,290.92

Finding the Fourth Proportional to 66,403.24, 99,552.70 and 45,290.92

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Solution

The fourth proportional to 66,403.24, 99,552.70 and 45,290.92 is: 67,900.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,403.24 : 99,552.70 = 45,290.92 : x
  2. Step 2: Convert to fraction form
    66,403.24/99,552.70 = 45,290.92/x
  3. Step 3: Cross multiply
    66,403.24x = 99,552.70 × 45,290.92
  4. Step 4: Simplify right side
    66,403.24x = 4,508,833,371.48
  5. Step 5: Solve for x
    x = 4,508,833,371.48/66,403.24
  6. Step 6: Final answer
    x = 67,900.80

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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.