Home / 85,019.64-127,429.83-45,605.04

Finding the Fourth Proportional to 85,019.64, 127,429.83 and 45,605.04

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Solution

The fourth proportional to 85,019.64, 127,429.83 and 45,605.04 is: 68,354.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,019.64 : 127,429.83 = 45,605.04 : x
  2. Step 2: Convert to fraction form
    85,019.64/127,429.83 = 45,605.04/x
  3. Step 3: Cross multiply
    85,019.64x = 127,429.83 × 45,605.04
  4. Step 4: Simplify right side
    85,019.64x = 5,811,442,494.34
  5. Step 5: Solve for x
    x = 5,811,442,494.34/85,019.64
  6. Step 6: Final answer
    x = 68,354.12

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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.