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Finding the Fourth Proportional to 45,491.76, 62,739.36 and 29,570.40

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Solution

The fourth proportional to 45,491.76, 62,739.36 and 29,570.40 is: 40,781.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,491.76 : 62,739.36 = 29,570.40 : x
  2. Step 2: Convert to fraction form
    45,491.76/62,739.36 = 29,570.40/x
  3. Step 3: Cross multiply
    45,491.76x = 62,739.36 × 29,570.40
  4. Step 4: Simplify right side
    45,491.76x = 1,855,227,970.94
  5. Step 5: Solve for x
    x = 1,855,227,970.94/45,491.76
  6. Step 6: Final answer
    x = 40,781.63

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1.5x scale

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.