Home / 56,583.89-78,085.40-31,090.54

Finding the Fourth Proportional to 56,583.89, 78,085.40 and 31,090.54

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Solution

The fourth proportional to 56,583.89, 78,085.40 and 31,090.54 is: 42,904.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,583.89 : 78,085.40 = 31,090.54 : x
  2. Step 2: Convert to fraction form
    56,583.89/78,085.40 = 31,090.54/x
  3. Step 3: Cross multiply
    56,583.89x = 78,085.40 × 31,090.54
  4. Step 4: Simplify right side
    56,583.89x = 2,427,717,003.13
  5. Step 5: Solve for x
    x = 2,427,717,003.13/56,583.89
  6. Step 6: Final answer
    x = 42,904.74

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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.