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Finding the Fourth Proportional to 56,686.92, 84,953.70 and 21,607.44

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Solution

The fourth proportional to 56,686.92, 84,953.70 and 21,607.44 is: 32,381.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,686.92 : 84,953.70 = 21,607.44 : x
  2. Step 2: Convert to fraction form
    56,686.92/84,953.70 = 21,607.44/x
  3. Step 3: Cross multiply
    56,686.92x = 84,953.70 × 21,607.44
  4. Step 4: Simplify right side
    56,686.92x = 1,835,631,975.53
  5. Step 5: Solve for x
    x = 1,835,631,975.53/56,686.92
  6. Step 6: Final answer
    x = 32,381.93

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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.