Home / 56,359.60-77,775.28-31,208.56

Finding the Fourth Proportional to 56,359.60, 77,775.28 and 31,208.56

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Solution

The fourth proportional to 56,359.60, 77,775.28 and 31,208.56 is: 43,067.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,359.60 : 77,775.28 = 31,208.56 : x
  2. Step 2: Convert to fraction form
    56,359.60/77,775.28 = 31,208.56/x
  3. Step 3: Cross multiply
    56,359.60x = 77,775.28 × 31,208.56
  4. Step 4: Simplify right side
    56,359.60x = 2,427,254,492.40
  5. Step 5: Solve for x
    x = 2,427,254,492.40/56,359.60
  6. Step 6: Final answer
    x = 43,067.28

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1.5x scale

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.