Home / 57,146.02-78,857.13-31,992.10

Finding the Fourth Proportional to 57,146.02, 78,857.13 and 31,992.10

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Solution

The fourth proportional to 57,146.02, 78,857.13 and 31,992.10 is: 44,146.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,146.02 : 78,857.13 = 31,992.10 : x
  2. Step 2: Convert to fraction form
    57,146.02/78,857.13 = 31,992.10/x
  3. Step 3: Cross multiply
    57,146.02x = 78,857.13 × 31,992.10
  4. Step 4: Simplify right side
    57,146.02x = 2,522,805,188.67
  5. Step 5: Solve for x
    x = 2,522,805,188.67/57,146.02
  6. Step 6: Final answer
    x = 44,146.65

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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.