Home / 56,508-77,983.47-31,357.50

Finding the Fourth Proportional to 56,508, 77,983.47 and 31,357.50

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Solution

The fourth proportional to 56,508, 77,983.47 and 31,357.50 is: 43,274.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,508 : 77,983.47 = 31,357.50 : x
  2. Step 2: Convert to fraction form
    56,508/77,983.47 = 31,357.50/x
  3. Step 3: Cross multiply
    56,508x = 77,983.47 × 31,357.50
  4. Step 4: Simplify right side
    56,508x = 2,445,366,660.53
  5. Step 5: Solve for x
    x = 2,445,366,660.53/56,508
  6. Step 6: Final answer
    x = 43,274.70

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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.