Home / 80,944.80-111,655.56-63,011.40

Finding the Fourth Proportional to 80,944.80, 111,655.56 and 63,011.40

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Solution

The fourth proportional to 80,944.80, 111,655.56 and 63,011.40 is: 86,918.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,944.80 : 111,655.56 = 63,011.40 : x
  2. Step 2: Convert to fraction form
    80,944.80/111,655.56 = 63,011.40/x
  3. Step 3: Cross multiply
    80,944.80x = 111,655.56 × 63,011.40
  4. Step 4: Simplify right side
    80,944.80x = 7,035,573,153.38
  5. Step 5: Solve for x
    x = 7,035,573,153.38/80,944.80
  6. Step 6: Final answer
    x = 86,918.16

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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.