Home / 83,736.28-115,461.84-64,572.76

Finding the Fourth Proportional to 83,736.28, 115,461.84 and 64,572.76

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Solution

The fourth proportional to 83,736.28, 115,461.84 and 64,572.76 is: 89,037.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,736.28 : 115,461.84 = 64,572.76 : x
  2. Step 2: Convert to fraction form
    83,736.28/115,461.84 = 64,572.76/x
  3. Step 3: Cross multiply
    83,736.28x = 115,461.84 × 64,572.76
  4. Step 4: Simplify right side
    83,736.28x = 7,455,689,683.48
  5. Step 5: Solve for x
    x = 7,455,689,683.48/83,736.28
  6. Step 6: Final answer
    x = 89,037.75

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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.