Home / 51,012.04-76,505.90-21,430.45

Finding the Fourth Proportional to 51,012.04, 76,505.90 and 21,430.45

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Solution

The fourth proportional to 51,012.04, 76,505.90 and 21,430.45 is: 32,140.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,012.04 : 76,505.90 = 21,430.45 : x
  2. Step 2: Convert to fraction form
    51,012.04/76,505.90 = 21,430.45/x
  3. Step 3: Cross multiply
    51,012.04x = 76,505.90 × 21,430.45
  4. Step 4: Simplify right side
    51,012.04x = 1,639,555,864.66
  5. Step 5: Solve for x
    x = 1,639,555,864.66/51,012.04
  6. Step 6: Final answer
    x = 32,140.57

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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.