Home / 81,314.60-121,971.90-41,948.60

Finding the Fourth Proportional to 81,314.60, 121,971.90 and 41,948.60

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Solution

The fourth proportional to 81,314.60, 121,971.90 and 41,948.60 is: 62,922.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,314.60 : 121,971.90 = 41,948.60 : x
  2. Step 2: Convert to fraction form
    81,314.60/121,971.90 = 41,948.60/x
  3. Step 3: Cross multiply
    81,314.60x = 121,971.90 × 41,948.60
  4. Step 4: Simplify right side
    81,314.60x = 5,116,550,444.34
  5. Step 5: Solve for x
    x = 5,116,550,444.34/81,314.60
  6. Step 6: Final answer
    x = 62,922.90

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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.