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Finding the Fourth Proportional to 39,544.80, 59,230.80 and 30,710.40

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Solution

The fourth proportional to 39,544.80, 59,230.80 and 30,710.40 is: 45,998.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,544.80 : 59,230.80 = 30,710.40 : x
  2. Step 2: Convert to fraction form
    39,544.80/59,230.80 = 30,710.40/x
  3. Step 3: Cross multiply
    39,544.80x = 59,230.80 × 30,710.40
  4. Step 4: Simplify right side
    39,544.80x = 1,819,001,560.32
  5. Step 5: Solve for x
    x = 1,819,001,560.32/39,544.80
  6. Step 6: Final answer
    x = 45,998.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.