Home / 66,305.61-91,506.11-38,011.77

Finding the Fourth Proportional to 66,305.61, 91,506.11 and 38,011.77

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Solution

The fourth proportional to 66,305.61, 91,506.11 and 38,011.77 is: 52,458.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,305.61 : 91,506.11 = 38,011.77 : x
  2. Step 2: Convert to fraction form
    66,305.61/91,506.11 = 38,011.77/x
  3. Step 3: Cross multiply
    66,305.61x = 91,506.11 × 38,011.77
  4. Step 4: Simplify right side
    66,305.61x = 3,478,309,016.86
  5. Step 5: Solve for x
    x = 3,478,309,016.86/66,305.61
  6. Step 6: Final answer
    x = 52,458.74

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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.