Home / 76,521.24-114,788.48-21,117.24

Finding the Fourth Proportional to 76,521.24, 114,788.48 and 21,117.24

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Solution

The fourth proportional to 76,521.24, 114,788.48 and 21,117.24 is: 31,677.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,521.24 : 114,788.48 = 21,117.24 : x
  2. Step 2: Convert to fraction form
    76,521.24/114,788.48 = 21,117.24/x
  3. Step 3: Cross multiply
    76,521.24x = 114,788.48 × 21,117.24
  4. Step 4: Simplify right side
    76,521.24x = 2,424,015,881.40
  5. Step 5: Solve for x
    x = 2,424,015,881.40/76,521.24
  6. Step 6: Final answer
    x = 31,677.69

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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.