Home / 83,436.48-115,141.65-45,195.12

Finding the Fourth Proportional to 83,436.48, 115,141.65 and 45,195.12

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Solution

The fourth proportional to 83,436.48, 115,141.65 and 45,195.12 is: 62,368.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,436.48 : 115,141.65 = 45,195.12 : x
  2. Step 2: Convert to fraction form
    83,436.48/115,141.65 = 45,195.12/x
  3. Step 3: Cross multiply
    83,436.48x = 115,141.65 × 45,195.12
  4. Step 4: Simplify right side
    83,436.48x = 5,203,840,688.75
  5. Step 5: Solve for x
    x = 5,203,840,688.75/83,436.48
  6. Step 6: Final answer
    x = 62,368.89

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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.