Home / 56,998.89-78,656.67-31,503.74

Finding the Fourth Proportional to 56,998.89, 78,656.67 and 31,503.74

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Solution

The fourth proportional to 56,998.89, 78,656.67 and 31,503.74 is: 43,474.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,998.89 : 78,656.67 = 31,503.74 : x
  2. Step 2: Convert to fraction form
    56,998.89/78,656.67 = 31,503.74/x
  3. Step 3: Cross multiply
    56,998.89x = 78,656.67 × 31,503.74
  4. Step 4: Simplify right side
    56,998.89x = 2,477,978,887.66
  5. Step 5: Solve for x
    x = 2,477,978,887.66/56,998.89
  6. Step 6: Final answer
    x = 43,474.16

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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.