Home / 51,020.64-70,407.99-28,359.72

Finding the Fourth Proportional to 51,020.64, 70,407.99 and 28,359.72

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Solution

The fourth proportional to 51,020.64, 70,407.99 and 28,359.72 is: 39,136.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,020.64 : 70,407.99 = 28,359.72 : x
  2. Step 2: Convert to fraction form
    51,020.64/70,407.99 = 28,359.72/x
  3. Step 3: Cross multiply
    51,020.64x = 70,407.99 × 28,359.72
  4. Step 4: Simplify right side
    51,020.64x = 1,996,750,882.16
  5. Step 5: Solve for x
    x = 1,996,750,882.16/51,020.64
  6. Step 6: Final answer
    x = 39,136.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.