Home / 85,209.48-127,832.49-26,043.21

Finding the Fourth Proportional to 85,209.48, 127,832.49 and 26,043.21

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Solution

The fourth proportional to 85,209.48, 127,832.49 and 26,043.21 is: 39,070.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,209.48 : 127,832.49 = 26,043.21 : x
  2. Step 2: Convert to fraction form
    85,209.48/127,832.49 = 26,043.21/x
  3. Step 3: Cross multiply
    85,209.48x = 127,832.49 × 26,043.21
  4. Step 4: Simplify right side
    85,209.48x = 3,329,168,381.89
  5. Step 5: Solve for x
    x = 3,329,168,381.89/85,209.48
  6. Step 6: Final answer
    x = 39,070.40

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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.