Home / 51,270.52-76,938.18-21,689.32

Finding the Fourth Proportional to 51,270.52, 76,938.18 and 21,689.32

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Solution

The fourth proportional to 51,270.52, 76,938.18 and 21,689.32 is: 32,547.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,270.52 : 76,938.18 = 21,689.32 : x
  2. Step 2: Convert to fraction form
    51,270.52/76,938.18 = 21,689.32/x
  3. Step 3: Cross multiply
    51,270.52x = 76,938.18 × 21,689.32
  4. Step 4: Simplify right side
    51,270.52x = 1,668,736,806.24
  5. Step 5: Solve for x
    x = 1,668,736,806.24/51,270.52
  6. Step 6: Final answer
    x = 32,547.69

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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.