Home / 57,007.88-78,670.98-31,857.38

Finding the Fourth Proportional to 57,007.88, 78,670.98 and 31,857.38

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Solution

The fourth proportional to 57,007.88, 78,670.98 and 31,857.38 is: 43,963.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,007.88 : 78,670.98 = 31,857.38 : x
  2. Step 2: Convert to fraction form
    57,007.88/78,670.98 = 31,857.38/x
  3. Step 3: Cross multiply
    57,007.88x = 78,670.98 × 31,857.38
  4. Step 4: Simplify right side
    57,007.88x = 2,506,251,304.83
  5. Step 5: Solve for x
    x = 2,506,251,304.83/57,007.88
  6. Step 6: Final answer
    x = 43,963.24

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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.