Home / 84,554.88-116,420.08-71,781.52

Finding the Fourth Proportional to 84,554.88, 116,420.08 and 71,781.52

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Solution

The fourth proportional to 84,554.88, 116,420.08 and 71,781.52 is: 98,832.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,554.88 : 116,420.08 = 71,781.52 : x
  2. Step 2: Convert to fraction form
    84,554.88/116,420.08 = 71,781.52/x
  3. Step 3: Cross multiply
    84,554.88x = 116,420.08 × 71,781.52
  4. Step 4: Simplify right side
    84,554.88x = 8,356,810,300.92
  5. Step 5: Solve for x
    x = 8,356,810,300.92/84,554.88
  6. Step 6: Final answer
    x = 98,832.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.