Home / 56,815.02-85,168.13-21,266.69

Finding the Fourth Proportional to 56,815.02, 85,168.13 and 21,266.69

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Solution

The fourth proportional to 56,815.02, 85,168.13 and 21,266.69 is: 31,879.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,815.02 : 85,168.13 = 21,266.69 : x
  2. Step 2: Convert to fraction form
    56,815.02/85,168.13 = 21,266.69/x
  3. Step 3: Cross multiply
    56,815.02x = 85,168.13 × 21,266.69
  4. Step 4: Simplify right side
    56,815.02x = 1,811,243,686.42
  5. Step 5: Solve for x
    x = 1,811,243,686.42/56,815.02
  6. Step 6: Final answer
    x = 31,879.66

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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.