Home / 56,732.07-78,289.59-31,237.90

Finding the Fourth Proportional to 56,732.07, 78,289.59 and 31,237.90

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Solution

The fourth proportional to 56,732.07, 78,289.59 and 31,237.90 is: 43,107.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,732.07 : 78,289.59 = 31,237.90 : x
  2. Step 2: Convert to fraction form
    56,732.07/78,289.59 = 31,237.90/x
  3. Step 3: Cross multiply
    56,732.07x = 78,289.59 × 31,237.90
  4. Step 4: Simplify right side
    56,732.07x = 2,445,602,383.46
  5. Step 5: Solve for x
    x = 2,445,602,383.46/56,732.07
  6. Step 6: Final answer
    x = 43,107.93

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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.