Home / 66,035.08-91,108.50-40,515.24

Finding the Fourth Proportional to 66,035.08, 91,108.50 and 40,515.24

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Solution

The fourth proportional to 66,035.08, 91,108.50 and 40,515.24 is: 55,898.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,035.08 : 91,108.50 = 40,515.24 : x
  2. Step 2: Convert to fraction form
    66,035.08/91,108.50 = 40,515.24/x
  3. Step 3: Cross multiply
    66,035.08x = 91,108.50 × 40,515.24
  4. Step 4: Simplify right side
    66,035.08x = 3,691,282,743.54
  5. Step 5: Solve for x
    x = 3,691,282,743.54/66,035.08
  6. Step 6: Final answer
    x = 55,898.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.