Home / 84,731.15-127,107.32-25,566.72

Finding the Fourth Proportional to 84,731.15, 127,107.32 and 25,566.72

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Solution

The fourth proportional to 84,731.15, 127,107.32 and 25,566.72 is: 38,353.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,731.15 : 127,107.32 = 25,566.72 : x
  2. Step 2: Convert to fraction form
    84,731.15/127,107.32 = 25,566.72/x
  3. Step 3: Cross multiply
    84,731.15x = 127,107.32 × 25,566.72
  4. Step 4: Simplify right side
    84,731.15x = 3,249,717,132.56
  5. Step 5: Solve for x
    x = 3,249,717,132.56/84,731.15
  6. Step 6: Final answer
    x = 38,353.28

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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.