Home / 85,275.56-117,678.86-47,038.82

Finding the Fourth Proportional to 85,275.56, 117,678.86 and 47,038.82

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Solution

The fourth proportional to 85,275.56, 117,678.86 and 47,038.82 is: 64,912.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,275.56 : 117,678.86 = 47,038.82 : x
  2. Step 2: Convert to fraction form
    85,275.56/117,678.86 = 47,038.82/x
  3. Step 3: Cross multiply
    85,275.56x = 117,678.86 × 47,038.82
  4. Step 4: Simplify right side
    85,275.56x = 5,535,474,713.35
  5. Step 5: Solve for x
    x = 5,535,474,713.35/85,275.56
  6. Step 6: Final answer
    x = 64,912.79

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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.