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Finding the Fourth Proportional to 56,804.59, 85,209.04 and 21,262.16

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Solution

The fourth proportional to 56,804.59, 85,209.04 and 21,262.16 is: 31,894.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,804.59 : 85,209.04 = 21,262.16 : x
  2. Step 2: Convert to fraction form
    56,804.59/85,209.04 = 21,262.16/x
  3. Step 3: Cross multiply
    56,804.59x = 85,209.04 × 21,262.16
  4. Step 4: Simplify right side
    56,804.59x = 1,811,728,461.52
  5. Step 5: Solve for x
    x = 1,811,728,461.52/56,804.59
  6. Step 6: Final answer
    x = 31,894.05

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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.