Home / 45,931.51-68,899.84-14,345.94

Finding the Fourth Proportional to 45,931.51, 68,899.84 and 14,345.94

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Solution

The fourth proportional to 45,931.51, 68,899.84 and 14,345.94 is: 21,519.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,931.51 : 68,899.84 = 14,345.94 : x
  2. Step 2: Convert to fraction form
    45,931.51/68,899.84 = 14,345.94/x
  3. Step 3: Cross multiply
    45,931.51x = 68,899.84 × 14,345.94
  4. Step 4: Simplify right side
    45,931.51x = 988,432,970.65
  5. Step 5: Solve for x
    x = 988,432,970.65/45,931.51
  6. Step 6: Final answer
    x = 21,519.71

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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.