Home / 81,549.80-112,529.68-45,732.40

Finding the Fourth Proportional to 81,549.80, 112,529.68 and 45,732.40

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Solution

The fourth proportional to 81,549.80, 112,529.68 and 45,732.40 is: 63,105.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,549.80 : 112,529.68 = 45,732.40 : x
  2. Step 2: Convert to fraction form
    81,549.80/112,529.68 = 45,732.40/x
  3. Step 3: Cross multiply
    81,549.80x = 112,529.68 × 45,732.40
  4. Step 4: Simplify right side
    81,549.80x = 5,146,252,337.63
  5. Step 5: Solve for x
    x = 5,146,252,337.63/81,549.80
  6. Step 6: Final answer
    x = 63,105.64

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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.