Home / 83,871.92-115,742.09-45,631.03

Finding the Fourth Proportional to 83,871.92, 115,742.09 and 45,631.03

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Solution

The fourth proportional to 83,871.92, 115,742.09 and 45,631.03 is: 62,970.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,871.92 : 115,742.09 = 45,631.03 : x
  2. Step 2: Convert to fraction form
    83,871.92/115,742.09 = 45,631.03/x
  3. Step 3: Cross multiply
    83,871.92x = 115,742.09 × 45,631.03
  4. Step 4: Simplify right side
    83,871.92x = 5,281,430,263.54
  5. Step 5: Solve for x
    x = 5,281,430,263.54/83,871.92
  6. Step 6: Final answer
    x = 62,970.19

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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.