Home / 84,785.28-117,009-47,060.16

Finding the Fourth Proportional to 84,785.28, 117,009 and 47,060.16

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Solution

The fourth proportional to 84,785.28, 117,009 and 47,060.16 is: 64,945.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,785.28 : 117,009 = 47,060.16 : x
  2. Step 2: Convert to fraction form
    84,785.28/117,009 = 47,060.16/x
  3. Step 3: Cross multiply
    84,785.28x = 117,009 × 47,060.16
  4. Step 4: Simplify right side
    84,785.28x = 5,506,462,261.44
  5. Step 5: Solve for x
    x = 5,506,462,261.44/84,785.28
  6. Step 6: Final answer
    x = 64,945.97

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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.