Home / 85,623.54-118,158.72-47,383.06

Finding the Fourth Proportional to 85,623.54, 118,158.72 and 47,383.06

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Solution

The fourth proportional to 85,623.54, 118,158.72 and 47,383.06 is: 65,387.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,623.54 : 118,158.72 = 47,383.06 : x
  2. Step 2: Convert to fraction form
    85,623.54/118,158.72 = 47,383.06/x
  3. Step 3: Cross multiply
    85,623.54x = 118,158.72 × 47,383.06
  4. Step 4: Simplify right side
    85,623.54x = 5,598,721,719.28
  5. Step 5: Solve for x
    x = 5,598,721,719.28/85,623.54
  6. Step 6: Final answer
    x = 65,387.65

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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.