Home / 45,101.57-67,615.89-18,825.98

Finding the Fourth Proportional to 45,101.57, 67,615.89 and 18,825.98

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Solution

The fourth proportional to 45,101.57, 67,615.89 and 18,825.98 is: 28,223.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,101.57 : 67,615.89 = 18,825.98 : x
  2. Step 2: Convert to fraction form
    45,101.57/67,615.89 = 18,825.98/x
  3. Step 3: Cross multiply
    45,101.57x = 67,615.89 × 18,825.98
  4. Step 4: Simplify right side
    45,101.57x = 1,272,935,054.74
  5. Step 5: Solve for x
    x = 1,272,935,054.74/45,101.57
  6. Step 6: Final answer
    x = 28,223.74

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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.