Home / 51,210.15-76,762.45-19,611.60

Finding the Fourth Proportional to 51,210.15, 76,762.45 and 19,611.60

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Solution

The fourth proportional to 51,210.15, 76,762.45 and 19,611.60 is: 29,397.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,210.15 : 76,762.45 = 19,611.60 : x
  2. Step 2: Convert to fraction form
    51,210.15/76,762.45 = 19,611.60/x
  3. Step 3: Cross multiply
    51,210.15x = 76,762.45 × 19,611.60
  4. Step 4: Simplify right side
    51,210.15x = 1,505,434,464.42
  5. Step 5: Solve for x
    x = 1,505,434,464.42/51,210.15
  6. Step 6: Final answer
    x = 29,397.19

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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.