Home / 51,011.66-76,505.34-21,430.06

Finding the Fourth Proportional to 51,011.66, 76,505.34 and 21,430.06

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Solution

The fourth proportional to 51,011.66, 76,505.34 and 21,430.06 is: 32,139.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,011.66 : 76,505.34 = 21,430.06 : x
  2. Step 2: Convert to fraction form
    51,011.66/76,505.34 = 21,430.06/x
  3. Step 3: Cross multiply
    51,011.66x = 76,505.34 × 21,430.06
  4. Step 4: Simplify right side
    51,011.66x = 1,639,514,026.52
  5. Step 5: Solve for x
    x = 1,639,514,026.52/51,011.66
  6. Step 6: Final answer
    x = 32,139.99

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1.5x scale

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.