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Finding the Fourth Proportional to 37,785.51, 56,666.18 and 12,479.39

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Solution

The fourth proportional to 37,785.51, 56,666.18 and 12,479.39 is: 18,715.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,785.51 : 56,666.18 = 12,479.39 : x
  2. Step 2: Convert to fraction form
    37,785.51/56,666.18 = 12,479.39/x
  3. Step 3: Cross multiply
    37,785.51x = 56,666.18 × 12,479.39
  4. Step 4: Simplify right side
    37,785.51x = 707,159,360.03
  5. Step 5: Solve for x
    x = 707,159,360.03/37,785.51
  6. Step 6: Final answer
    x = 18,715.09

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.