Home / 56,988.48-78,638.40-31,833.12

Finding the Fourth Proportional to 56,988.48, 78,638.40 and 31,833.12

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Solution

The fourth proportional to 56,988.48, 78,638.40 and 31,833.12 is: 43,926.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,988.48 : 78,638.40 = 31,833.12 : x
  2. Step 2: Convert to fraction form
    56,988.48/78,638.40 = 31,833.12/x
  3. Step 3: Cross multiply
    56,988.48x = 78,638.40 × 31,833.12
  4. Step 4: Simplify right side
    56,988.48x = 2,503,305,623.81
  5. Step 5: Solve for x
    x = 2,503,305,623.81/56,988.48
  6. Step 6: Final answer
    x = 43,926.52

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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.