Home / 84,785.58-117,013.38-48,490.39

Finding the Fourth Proportional to 84,785.58, 117,013.38 and 48,490.39

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Solution

The fourth proportional to 84,785.58, 117,013.38 and 48,490.39 is: 66,922.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,785.58 : 117,013.38 = 48,490.39 : x
  2. Step 2: Convert to fraction form
    84,785.58/117,013.38 = 48,490.39/x
  3. Step 3: Cross multiply
    84,785.58x = 117,013.38 × 48,490.39
  4. Step 4: Simplify right side
    84,785.58x = 5,674,024,431.42
  5. Step 5: Solve for x
    x = 5,674,024,431.42/84,785.58
  6. Step 6: Final answer
    x = 66,922.05

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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.