Home / 56,985.46-78,642.70-34,331.56

Finding the Fourth Proportional to 56,985.46, 78,642.70 and 34,331.56

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Solution

The fourth proportional to 56,985.46, 78,642.70 and 34,331.56 is: 47,379.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,985.46 : 78,642.70 = 34,331.56 : x
  2. Step 2: Convert to fraction form
    56,985.46/78,642.70 = 34,331.56/x
  3. Step 3: Cross multiply
    56,985.46x = 78,642.70 × 34,331.56
  4. Step 4: Simplify right side
    56,985.46x = 2,699,926,573.61
  5. Step 5: Solve for x
    x = 2,699,926,573.61/56,985.46
  6. Step 6: Final answer
    x = 47,379.22

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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.