Home / 77,759.04-107,282.40-45,938.88

Finding the Fourth Proportional to 77,759.04, 107,282.40 and 45,938.88

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Solution

The fourth proportional to 77,759.04, 107,282.40 and 45,938.88 is: 63,380.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,759.04 : 107,282.40 = 45,938.88 : x
  2. Step 2: Convert to fraction form
    77,759.04/107,282.40 = 45,938.88/x
  3. Step 3: Cross multiply
    77,759.04x = 107,282.40 × 45,938.88
  4. Step 4: Simplify right side
    77,759.04x = 4,928,433,299.71
  5. Step 5: Solve for x
    x = 4,928,433,299.71/77,759.04
  6. Step 6: Final answer
    x = 63,380.84

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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.