Home / 83,621.06-115,402.74-47,322.53

Finding the Fourth Proportional to 83,621.06, 115,402.74 and 47,322.53

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Solution

The fourth proportional to 83,621.06, 115,402.74 and 47,322.53 is: 65,308.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,621.06 : 115,402.74 = 47,322.53 : x
  2. Step 2: Convert to fraction form
    83,621.06/115,402.74 = 47,322.53/x
  3. Step 3: Cross multiply
    83,621.06x = 115,402.74 × 47,322.53
  4. Step 4: Simplify right side
    83,621.06x = 5,461,149,048.72
  5. Step 5: Solve for x
    x = 5,461,149,048.72/83,621.06
  6. Step 6: Final answer
    x = 65,308.30

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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.