Home / 56,877.17-78,486.94-31,383.73

Finding the Fourth Proportional to 56,877.17, 78,486.94 and 31,383.73

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Solution

The fourth proportional to 56,877.17, 78,486.94 and 31,383.73 is: 43,307.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,877.17 : 78,486.94 = 31,383.73 : x
  2. Step 2: Convert to fraction form
    56,877.17/78,486.94 = 31,383.73/x
  3. Step 3: Cross multiply
    56,877.17x = 78,486.94 × 31,383.73
  4. Step 4: Simplify right side
    56,877.17x = 2,463,213,070.82
  5. Step 5: Solve for x
    x = 2,463,213,070.82/56,877.17
  6. Step 6: Final answer
    x = 43,307.59

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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.