Home / 81,292.60-121,938.90-41,926.60

Finding the Fourth Proportional to 81,292.60, 121,938.90 and 41,926.60

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Solution

The fourth proportional to 81,292.60, 121,938.90 and 41,926.60 is: 62,889.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,292.60 : 121,938.90 = 41,926.60 : x
  2. Step 2: Convert to fraction form
    81,292.60/121,938.90 = 41,926.60/x
  3. Step 3: Cross multiply
    81,292.60x = 121,938.90 × 41,926.60
  4. Step 4: Simplify right side
    81,292.60x = 5,112,483,484.74
  5. Step 5: Solve for x
    x = 5,112,483,484.74/81,292.60
  6. Step 6: Final answer
    x = 62,889.90

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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.