Home / 85,516.46-118,054.79-53,702.90

Finding the Fourth Proportional to 85,516.46, 118,054.79 and 53,702.90

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Solution

The fourth proportional to 85,516.46, 118,054.79 and 53,702.90 is: 74,136.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,516.46 : 118,054.79 = 53,702.90 : x
  2. Step 2: Convert to fraction form
    85,516.46/118,054.79 = 53,702.90/x
  3. Step 3: Cross multiply
    85,516.46x = 118,054.79 × 53,702.90
  4. Step 4: Simplify right side
    85,516.46x = 6,339,883,723.10
  5. Step 5: Solve for x
    x = 6,339,883,723.10/85,516.46
  6. Step 6: Final answer
    x = 74,136.42

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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.