Home / 56,387.31-77,817.02-31,235.19

Finding the Fourth Proportional to 56,387.31, 77,817.02 and 31,235.19

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Solution

The fourth proportional to 56,387.31, 77,817.02 and 31,235.19 is: 43,105.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,387.31 : 77,817.02 = 31,235.19 : x
  2. Step 2: Convert to fraction form
    56,387.31/77,817.02 = 31,235.19/x
  3. Step 3: Cross multiply
    56,387.31x = 77,817.02 × 31,235.19
  4. Step 4: Simplify right side
    56,387.31x = 2,430,629,248.76
  5. Step 5: Solve for x
    x = 2,430,629,248.76/56,387.31
  6. Step 6: Final answer
    x = 43,105.96

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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.