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Finding the Fourth Proportional to 56,521, 84,781.50 and 14,968

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Solution

The fourth proportional to 56,521, 84,781.50 and 14,968 is: 22,452

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,521 : 84,781.50 = 14,968 : x
  2. Step 2: Convert to fraction form
    56,521/84,781.50 = 14,968/x
  3. Step 3: Cross multiply
    56,521x = 84,781.50 × 14,968
  4. Step 4: Simplify right side
    56,521x = 1,269,009,492
  5. Step 5: Solve for x
    x = 1,269,009,492/56,521
  6. Step 6: Final answer
    x = 22,452

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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.