Home / 84,135.20-116,114.76-62,877.56

Finding the Fourth Proportional to 84,135.20, 116,114.76 and 62,877.56

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Solution

The fourth proportional to 84,135.20, 116,114.76 and 62,877.56 is: 86,777.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,135.20 : 116,114.76 = 62,877.56 : x
  2. Step 2: Convert to fraction form
    84,135.20/116,114.76 = 62,877.56/x
  3. Step 3: Cross multiply
    84,135.20x = 116,114.76 × 62,877.56
  4. Step 4: Simplify right side
    84,135.20x = 7,301,012,788.79
  5. Step 5: Solve for x
    x = 7,301,012,788.79/84,135.20
  6. Step 6: Final answer
    x = 86,777.15

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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.