Home / 51,320.59-76,988.21-15,784.88

Finding the Fourth Proportional to 51,320.59, 76,988.21 and 15,784.88

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Solution

The fourth proportional to 51,320.59, 76,988.21 and 15,784.88 is: 23,679.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,320.59 : 76,988.21 = 15,784.88 : x
  2. Step 2: Convert to fraction form
    51,320.59/76,988.21 = 15,784.88/x
  3. Step 3: Cross multiply
    51,320.59x = 76,988.21 × 15,784.88
  4. Step 4: Simplify right side
    51,320.59x = 1,215,249,192.40
  5. Step 5: Solve for x
    x = 1,215,249,192.40/51,320.59
  6. Step 6: Final answer
    x = 23,679.57

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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.