Home / 56,740.96-78,302.64-31,591.36

Finding the Fourth Proportional to 56,740.96, 78,302.64 and 31,591.36

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Solution

The fourth proportional to 56,740.96, 78,302.64 and 31,591.36 is: 43,596.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,740.96 : 78,302.64 = 31,591.36 : x
  2. Step 2: Convert to fraction form
    56,740.96/78,302.64 = 31,591.36/x
  3. Step 3: Cross multiply
    56,740.96x = 78,302.64 × 31,591.36
  4. Step 4: Simplify right side
    56,740.96x = 2,473,686,889.19
  5. Step 5: Solve for x
    x = 2,473,686,889.19/56,740.96
  6. Step 6: Final answer
    x = 43,596.14

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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.