Home / 80,820.28-111,533.08-45,011.18

Finding the Fourth Proportional to 80,820.28, 111,533.08 and 45,011.18

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Solution

The fourth proportional to 80,820.28, 111,533.08 and 45,011.18 is: 62,116.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,820.28 : 111,533.08 = 45,011.18 : x
  2. Step 2: Convert to fraction form
    80,820.28/111,533.08 = 45,011.18/x
  3. Step 3: Cross multiply
    80,820.28x = 111,533.08 × 45,011.18
  4. Step 4: Simplify right side
    80,820.28x = 5,020,235,539.83
  5. Step 5: Solve for x
    x = 5,020,235,539.83/80,820.28
  6. Step 6: Final answer
    x = 62,116.04

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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.