Home / 84,990.12-117,284.70-47,263.56

Finding the Fourth Proportional to 84,990.12, 117,284.70 and 47,263.56

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Solution

The fourth proportional to 84,990.12, 117,284.70 and 47,263.56 is: 65,222.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,990.12 : 117,284.70 = 47,263.56 : x
  2. Step 2: Convert to fraction form
    84,990.12/117,284.70 = 47,263.56/x
  3. Step 3: Cross multiply
    84,990.12x = 117,284.70 × 47,263.56
  4. Step 4: Simplify right side
    84,990.12x = 5,543,292,455.53
  5. Step 5: Solve for x
    x = 5,543,292,455.53/84,990.12
  6. Step 6: Final answer
    x = 65,222.79

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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.