Home / 56,736.58-78,295.80-31,242.40

Finding the Fourth Proportional to 56,736.58, 78,295.80 and 31,242.40

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Solution

The fourth proportional to 56,736.58, 78,295.80 and 31,242.40 is: 43,114.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,736.58 : 78,295.80 = 31,242.40 : x
  2. Step 2: Convert to fraction form
    56,736.58/78,295.80 = 31,242.40/x
  3. Step 3: Cross multiply
    56,736.58x = 78,295.80 × 31,242.40
  4. Step 4: Simplify right side
    56,736.58x = 2,446,148,701.92
  5. Step 5: Solve for x
    x = 2,446,148,701.92/56,736.58
  6. Step 6: Final answer
    x = 43,114.14

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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.