Home / 56,625.12-78,139.62-31,473

Finding the Fourth Proportional to 56,625.12, 78,139.62 and 31,473

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Solution

The fourth proportional to 56,625.12, 78,139.62 and 31,473 is: 43,431.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,625.12 : 78,139.62 = 31,473 : x
  2. Step 2: Convert to fraction form
    56,625.12/78,139.62 = 31,473/x
  3. Step 3: Cross multiply
    56,625.12x = 78,139.62 × 31,473
  4. Step 4: Simplify right side
    56,625.12x = 2,459,288,260.26
  5. Step 5: Solve for x
    x = 2,459,288,260.26/56,625.12
  6. Step 6: Final answer
    x = 43,431.05

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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.