Home / 57,119.40-78,827.24-31,625.77

Finding the Fourth Proportional to 57,119.40, 78,827.24 and 31,625.77

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Solution

The fourth proportional to 57,119.40, 78,827.24 and 31,625.77 is: 43,644.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,119.40 : 78,827.24 = 31,625.77 : x
  2. Step 2: Convert to fraction form
    57,119.40/78,827.24 = 31,625.77/x
  3. Step 3: Cross multiply
    57,119.40x = 78,827.24 × 31,625.77
  4. Step 4: Simplify right side
    57,119.40x = 2,492,971,925.37
  5. Step 5: Solve for x
    x = 2,492,971,925.37/57,119.40
  6. Step 6: Final answer
    x = 43,644.92

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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.