Home / 56,894.40-78,512.64-31,743.36

Finding the Fourth Proportional to 56,894.40, 78,512.64 and 31,743.36

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Solution

The fourth proportional to 56,894.40, 78,512.64 and 31,743.36 is: 43,804.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,894.40 : 78,512.64 = 31,743.36 : x
  2. Step 2: Convert to fraction form
    56,894.40/78,512.64 = 31,743.36/x
  3. Step 3: Cross multiply
    56,894.40x = 78,512.64 × 31,743.36
  4. Step 4: Simplify right side
    56,894.40x = 2,492,254,996.07
  5. Step 5: Solve for x
    x = 2,492,254,996.07/56,894.40
  6. Step 6: Final answer
    x = 43,804.93

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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.