Home / 84,942.77-127,407.65-25,778.75

Finding the Fourth Proportional to 84,942.77, 127,407.65 and 25,778.75

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Solution

The fourth proportional to 84,942.77, 127,407.65 and 25,778.75 is: 38,666.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,942.77 : 127,407.65 = 25,778.75 : x
  2. Step 2: Convert to fraction form
    84,942.77/127,407.65 = 25,778.75/x
  3. Step 3: Cross multiply
    84,942.77x = 127,407.65 × 25,778.75
  4. Step 4: Simplify right side
    84,942.77x = 3,284,409,191.51
  5. Step 5: Solve for x
    x = 3,284,409,191.51/84,942.77
  6. Step 6: Final answer
    x = 38,666.14

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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.