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Finding the Fourth Proportional to 56,457, 84,685.50 and 14,904

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Solution

The fourth proportional to 56,457, 84,685.50 and 14,904 is: 22,356

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,457 : 84,685.50 = 14,904 : x
  2. Step 2: Convert to fraction form
    56,457/84,685.50 = 14,904/x
  3. Step 3: Cross multiply
    56,457x = 84,685.50 × 14,904
  4. Step 4: Simplify right side
    56,457x = 1,262,152,692
  5. Step 5: Solve for x
    x = 1,262,152,692/56,457
  6. Step 6: Final answer
    x = 22,356

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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.