Home / 83,365.04-115,043.76-45,639.29

Finding the Fourth Proportional to 83,365.04, 115,043.76 and 45,639.29

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Solution

The fourth proportional to 83,365.04, 115,043.76 and 45,639.29 is: 62,982.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,365.04 : 115,043.76 = 45,639.29 : x
  2. Step 2: Convert to fraction form
    83,365.04/115,043.76 = 45,639.29/x
  3. Step 3: Cross multiply
    83,365.04x = 115,043.76 × 45,639.29
  4. Step 4: Simplify right side
    83,365.04x = 5,250,515,812.94
  5. Step 5: Solve for x
    x = 5,250,515,812.94/83,365.04
  6. Step 6: Final answer
    x = 62,982.22

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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.