Home / 56,357.64-77,775.30-31,209.48

Finding the Fourth Proportional to 56,357.64, 77,775.30 and 31,209.48

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Solution

The fourth proportional to 56,357.64, 77,775.30 and 31,209.48 is: 43,070.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,357.64 : 77,775.30 = 31,209.48 : x
  2. Step 2: Convert to fraction form
    56,357.64/77,775.30 = 31,209.48/x
  3. Step 3: Cross multiply
    56,357.64x = 77,775.30 × 31,209.48
  4. Step 4: Simplify right side
    56,357.64x = 2,427,326,669.84
  5. Step 5: Solve for x
    x = 2,427,326,669.84/56,357.64
  6. Step 6: Final answer
    x = 43,070.06

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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.