Home / 76,071.86-114,114.36-19,911.74

Finding the Fourth Proportional to 76,071.86, 114,114.36 and 19,911.74

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Solution

The fourth proportional to 76,071.86, 114,114.36 and 19,911.74 is: 29,869.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,071.86 : 114,114.36 = 19,911.74 : x
  2. Step 2: Convert to fraction form
    76,071.86/114,114.36 = 19,911.74/x
  3. Step 3: Cross multiply
    76,071.86x = 114,114.36 × 19,911.74
  4. Step 4: Simplify right side
    76,071.86x = 2,272,215,466.59
  5. Step 5: Solve for x
    x = 2,272,215,466.59/76,071.86
  6. Step 6: Final answer
    x = 29,869.33

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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.