Home / 51,298.79-76,929.66-21,718.67

Finding the Fourth Proportional to 51,298.79, 76,929.66 and 21,718.67

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Solution

The fourth proportional to 51,298.79, 76,929.66 and 21,718.67 is: 32,570.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,298.79 : 76,929.66 = 21,718.67 : x
  2. Step 2: Convert to fraction form
    51,298.79/76,929.66 = 21,718.67/x
  3. Step 3: Cross multiply
    51,298.79x = 76,929.66 × 21,718.67
  4. Step 4: Simplify right side
    51,298.79x = 1,670,809,514.10
  5. Step 5: Solve for x
    x = 1,670,809,514.10/51,298.79
  6. Step 6: Final answer
    x = 32,570.16

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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.