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Finding the Fourth Proportional to 45,322.50, 67,935.15 and 21,897.30

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Solution

The fourth proportional to 45,322.50, 67,935.15 and 21,897.30 is: 32,822.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,322.50 : 67,935.15 = 21,897.30 : x
  2. Step 2: Convert to fraction form
    45,322.50/67,935.15 = 21,897.30/x
  3. Step 3: Cross multiply
    45,322.50x = 67,935.15 × 21,897.30
  4. Step 4: Simplify right side
    45,322.50x = 1,487,596,360.10
  5. Step 5: Solve for x
    x = 1,487,596,360.10/45,322.50
  6. Step 6: Final answer
    x = 32,822.47

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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.