Home / 66,811.24-92,155.62-42,900.04

Finding the Fourth Proportional to 66,811.24, 92,155.62 and 42,900.04

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Solution

The fourth proportional to 66,811.24, 92,155.62 and 42,900.04 is: 59,173.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,811.24 : 92,155.62 = 42,900.04 : x
  2. Step 2: Convert to fraction form
    66,811.24/92,155.62 = 42,900.04/x
  3. Step 3: Cross multiply
    66,811.24x = 92,155.62 × 42,900.04
  4. Step 4: Simplify right side
    66,811.24x = 3,953,479,784.22
  5. Step 5: Solve for x
    x = 3,953,479,784.22/66,811.24
  6. Step 6: Final answer
    x = 59,173.87

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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.