Home / 56,986.06-78,643.56-34,331.98

Finding the Fourth Proportional to 56,986.06, 78,643.56 and 34,331.98

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Solution

The fourth proportional to 56,986.06, 78,643.56 and 34,331.98 is: 47,379.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,986.06 : 78,643.56 = 34,331.98 : x
  2. Step 2: Convert to fraction form
    56,986.06/78,643.56 = 34,331.98/x
  3. Step 3: Cross multiply
    56,986.06x = 78,643.56 × 34,331.98
  4. Step 4: Simplify right side
    56,986.06x = 2,699,989,129.05
  5. Step 5: Solve for x
    x = 2,699,989,129.05/56,986.06
  6. Step 6: Final answer
    x = 47,379.82

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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.