Home / 56,985.60-78,630.40-31,833.60

Finding the Fourth Proportional to 56,985.60, 78,630.40 and 31,833.60

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Solution

The fourth proportional to 56,985.60, 78,630.40 and 31,833.60 is: 43,924.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,985.60 : 78,630.40 = 31,833.60 : x
  2. Step 2: Convert to fraction form
    56,985.60/78,630.40 = 31,833.60/x
  3. Step 3: Cross multiply
    56,985.60x = 78,630.40 × 31,833.60
  4. Step 4: Simplify right side
    56,985.60x = 2,503,088,701.44
  5. Step 5: Solve for x
    x = 2,503,088,701.44/56,985.60
  6. Step 6: Final answer
    x = 43,924.93

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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.