Home / 83,771.10-115,631.06-53,637.58

Finding the Fourth Proportional to 83,771.10, 115,631.06 and 53,637.58

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Solution

The fourth proportional to 83,771.10, 115,631.06 and 53,637.58 is: 74,037.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,771.10 : 115,631.06 = 53,637.58 : x
  2. Step 2: Convert to fraction form
    83,771.10/115,631.06 = 53,637.58/x
  3. Step 3: Cross multiply
    83,771.10x = 115,631.06 × 53,637.58
  4. Step 4: Simplify right side
    83,771.10x = 6,202,170,231.23
  5. Step 5: Solve for x
    x = 6,202,170,231.23/83,771.10
  6. Step 6: Final answer
    x = 74,037.11

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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.