Home / 77,550.96-116,272.12-39,611.78

Finding the Fourth Proportional to 77,550.96, 116,272.12 and 39,611.78

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Solution

The fourth proportional to 77,550.96, 116,272.12 and 39,611.78 is: 59,389.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,550.96 : 116,272.12 = 39,611.78 : x
  2. Step 2: Convert to fraction form
    77,550.96/116,272.12 = 39,611.78/x
  3. Step 3: Cross multiply
    77,550.96x = 116,272.12 × 39,611.78
  4. Step 4: Simplify right side
    77,550.96x = 4,605,744,957.18
  5. Step 5: Solve for x
    x = 4,605,744,957.18/77,550.96
  6. Step 6: Final answer
    x = 59,389.92

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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.