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Finding the Fourth Proportional to 56,459.49, 84,664.61 and 19,009.50

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Solution

The fourth proportional to 56,459.49, 84,664.61 and 19,009.50 is: 28,505.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,459.49 : 84,664.61 = 19,009.50 : x
  2. Step 2: Convert to fraction form
    56,459.49/84,664.61 = 19,009.50/x
  3. Step 3: Cross multiply
    56,459.49x = 84,664.61 × 19,009.50
  4. Step 4: Simplify right side
    56,459.49x = 1,609,431,903.80
  5. Step 5: Solve for x
    x = 1,609,431,903.80/56,459.49
  6. Step 6: Final answer
    x = 28,505.96

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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.