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Finding the Fourth Proportional to 72,854.98, 100,537.13 and 40,588.83

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Solution

The fourth proportional to 72,854.98, 100,537.13 and 40,588.83 is: 56,011.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,854.98 : 100,537.13 = 40,588.83 : x
  2. Step 2: Convert to fraction form
    72,854.98/100,537.13 = 40,588.83/x
  3. Step 3: Cross multiply
    72,854.98x = 100,537.13 × 40,588.83
  4. Step 4: Simplify right side
    72,854.98x = 4,080,684,579.73
  5. Step 5: Solve for x
    x = 4,080,684,579.73/72,854.98
  6. Step 6: Final answer
    x = 56,011.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.