Home / 81,586.08-112,580.64-47,597.76

Finding the Fourth Proportional to 81,586.08, 112,580.64 and 47,597.76

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Solution

The fourth proportional to 81,586.08, 112,580.64 and 47,597.76 is: 65,680.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,586.08 : 112,580.64 = 47,597.76 : x
  2. Step 2: Convert to fraction form
    81,586.08/112,580.64 = 47,597.76/x
  3. Step 3: Cross multiply
    81,586.08x = 112,580.64 × 47,597.76
  4. Step 4: Simplify right side
    81,586.08x = 5,358,586,283.37
  5. Step 5: Solve for x
    x = 5,358,586,283.37/81,586.08
  6. Step 6: Final answer
    x = 65,680.15

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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.