Home / 56,625.18-78,140.61-31,476.30

Finding the Fourth Proportional to 56,625.18, 78,140.61 and 31,476.30

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Solution

The fourth proportional to 56,625.18, 78,140.61 and 31,476.30 is: 43,436.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,625.18 : 78,140.61 = 31,476.30 : x
  2. Step 2: Convert to fraction form
    56,625.18/78,140.61 = 31,476.30/x
  3. Step 3: Cross multiply
    56,625.18x = 78,140.61 × 31,476.30
  4. Step 4: Simplify right side
    56,625.18x = 2,459,577,282.54
  5. Step 5: Solve for x
    x = 2,459,577,282.54/56,625.18
  6. Step 6: Final answer
    x = 43,436.11

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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.