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Finding the Fourth Proportional to 80,287.77, 110,783.04 and 45,816.76

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Solution

The fourth proportional to 80,287.77, 110,783.04 and 45,816.76 is: 63,219.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,287.77 : 110,783.04 = 45,816.76 : x
  2. Step 2: Convert to fraction form
    80,287.77/110,783.04 = 45,816.76/x
  3. Step 3: Cross multiply
    80,287.77x = 110,783.04 × 45,816.76
  4. Step 4: Simplify right side
    80,287.77x = 5,075,719,726.67
  5. Step 5: Solve for x
    x = 5,075,719,726.67/80,287.77
  6. Step 6: Final answer
    x = 63,219.09

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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.