Home / 83,403.81-115,099.18-47,597.15

Finding the Fourth Proportional to 83,403.81, 115,099.18 and 47,597.15

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Solution

The fourth proportional to 83,403.81, 115,099.18 and 47,597.15 is: 65,685.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,403.81 : 115,099.18 = 47,597.15 : x
  2. Step 2: Convert to fraction form
    83,403.81/115,099.18 = 47,597.15/x
  3. Step 3: Cross multiply
    83,403.81x = 115,099.18 × 47,597.15
  4. Step 4: Simplify right side
    83,403.81x = 5,478,393,104.09
  5. Step 5: Solve for x
    x = 5,478,393,104.09/83,403.81
  6. Step 6: Final answer
    x = 65,685.17

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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.