Home / 81,985.15-113,164.59-48,001.60

Finding the Fourth Proportional to 81,985.15, 113,164.59 and 48,001.60

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Solution

The fourth proportional to 81,985.15, 113,164.59 and 48,001.60 is: 66,256.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,985.15 : 113,164.59 = 48,001.60 : x
  2. Step 2: Convert to fraction form
    81,985.15/113,164.59 = 48,001.60/x
  3. Step 3: Cross multiply
    81,985.15x = 113,164.59 × 48,001.60
  4. Step 4: Simplify right side
    81,985.15x = 5,432,081,383.34
  5. Step 5: Solve for x
    x = 5,432,081,383.34/81,985.15
  6. Step 6: Final answer
    x = 66,256.89

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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.