Home / 85,666.08-118,220.76-47,940.24

Finding the Fourth Proportional to 85,666.08, 118,220.76 and 47,940.24

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Solution

The fourth proportional to 85,666.08, 118,220.76 and 47,940.24 is: 66,158.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,666.08 : 118,220.76 = 47,940.24 : x
  2. Step 2: Convert to fraction form
    85,666.08/118,220.76 = 47,940.24/x
  3. Step 3: Cross multiply
    85,666.08x = 118,220.76 × 47,940.24
  4. Step 4: Simplify right side
    85,666.08x = 5,667,531,607.38
  5. Step 5: Solve for x
    x = 5,667,531,607.38/85,666.08
  6. Step 6: Final answer
    x = 66,158.41

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Double scale
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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.